According to the people who know him best, Yaya Toure always had the ability and ambition he needed to make his journey from a barefooted boy footballer to one of the best players in the world.

But, even for someone as gifted as the Manchester City midfielder, those attributes on their own might not have been enough.
Ahead of this week's mouth-watering Champions League clash with his former club Barcelona, the 30-year-old has two men in particular to thank for the shape of his unique career so far.
The first is former France international Jean-Marc Guillou, a football eccentric, pioneering coach and one of Arsene Wenger's oldest allies. He moulded Toure as a player and a personality, and brought him to Europe from Ivory Coast.
All of Jean-Marc Guillou's teams train barefooted because he believes that reduces the chance of injury and improves a player's touch.
They also practice and play some games without a goalkeeper because Guillou feels it improves his players' defensive capabilities and makes them want to win the ball back higher up the pitch.
During his time working with ASEC, he developed players such as Gervinho, Emmanuel Eboue, Kolo Toure, Salomon Kalou and Didier Zokora.
Guillou now has academies in Mali, Algeria, Egypt, Vietnam, Ghana and Belgium.
"I realised very quickly, when I first saw him aged 12, that Yaya had huge potential," Guillou told BBC Sport. "He was the one who could, later on, be a rival to the best players in the world. For me, it is a pleasure to have played my part in making that happen."
Then there is Dimitri Seluk, a Ukrainian agent who claims he is different from others in his profession because, as he puts it: "I like my players more than I like money."
He helped make Toure a millionaire and also took him on a tour of some unlikely European clubs. During that time, they forged a bond so strong that Toure named his second child Dimitri after his friend and adviser.
"When he was young, I put Yaya in more difficult situations so he had to grow and have a stronger personality," Seluk told BBC Sport. "Everywhere he went, he proved himself, and that has paid off for him in the end."
Because of Seluk, Toure's story features chapters in Ukraine, Greece, Monaco, Spain and Manchester but it began when Guillou first noticed the fledgling talent in his academy at ASEC Mimosas in the Ivorian city of Abidjan.
"Nobody had talked about him to me," Guillou said. "Even his older brother Kolo, who already played for us, had not mentioned him.
"Above anything else, it was Yaya's technical ability and performance in that game which made me decide to take him on myself straight away."
Under Guillou's tutelage, Toure's skills developed and so did his personality. Shortly before his move to Europe, aged 18, he made his own decision about where he was best off playing.
"He left our academy to join our partner club but came back to train with us after two weeks because he thought he was wasting his time over there," Guillou recalled.
"Six months later, knowing that, I took him to Belgium because as well as his talent he had showed me he had character and he knew what he wanted."
Toure was one of 24 Ivorians to join KSK Beveren in 2001 in an experiment staged by Guillou that saw him buy a club, then use Belgium's more relaxed naturalisation laws to import his academy players en masse and play them in the country's top division.
None of them are still in Beveren, and Toure's old club does not even exist - it merged with a neighbouring team in 2010. But people in the town have not forgotten Toure, or his attitude.
Danny Stuer, Beveren's fitness trainer when Toure played for them, recalls "a tall, skinny guy" who lived on junk food but desperately wanted to improve his physique.
"Now I look at Yaya and see a top athlete but, back then, he needed more muscles," Stuer told BBC Sport. "He knew he had to work to get a good result, so he was in my gym all the time. I worked with him practically every day and his build altered a lot."
Toure was taking the first steps towards becoming the midfield powerhouse we know today.
When he signed for Beveren, Toure weighed around 12st and was 6ft 1.5in tall. Now he is 6ft 3in and 14 stone.
But while his physique was changing then, his dedication did not.
"He was a lovely guy, quite shy," added Stuer. "When the other players received money, they would go out and buy beer, while Yaya always stayed in his apartment, focusing on the next day's training or the next game. He always had a vision - he wanted to play for a great team."
That team could have been Arsenal. Their boss Wenger was following Toure's progress closely and the midfielder went on trial with the Gunners in 2003, playing in a friendly against Barnet and hoping to join older brother Kolo in north London.
However, passport issues prevented the switch to England and moves to two bigger Belgian clubs, Anderlecht and Club Brugge, also fell through when they refused to pay Beveren's £2m asking price.
Instead, with Seluk now pulling the strings, Toure went east, joining Metalurh Donetsk in Ukraine with two of Beveren's other Ivorians; Arsene Ne and Igor Lolo.
His brother Kolo was against the move and Toure disliked the cold climate, but he did not stop applying himself. He has described the 18 months he spent in Donetsk as the time when he learned that "football was a job".
"He went to Ukraine and developed, not only in football but in life too," Seluk explained. "Yaya had no family there, so of course I helped him. But after his time in Ukraine, he had a stronger mentality."
The next stop was Olympiakos, in Greece, where his coach was Trond Sollied. The Norwegian was the coach who had tried to sign Toure for Brugge in 2003 - and this time had the necessary funds when Seluk said the Ivorian was available.
"I had first seen him in Belgium," Sollied said. "Beveren had an outstanding team and he was one of their biggest talents. He was a diamond.
Born: Bouake, Ivory Coast Age: 30
Favourite players as a boy: Patrick Vieira and Socrates
Clubs: Les Inconditionnels (1995-96), ASEC Mimosas (1996-2001), Beveren (2001-03), Metalurh Donetsk (2003-05), Olympiakos (2005-06), Monaco (2006-07), Barcelona (2007-10), Manchester City (2010- )
Country: 82 Ivory Coast caps, 16 goals
Languages spoken: French, Russian, Greek, Catalan, English
Honours won: The 2009 Champions League. League titles in Greece, Spain and England, and domestic cups in each country too.
"Then he went away to Metalurh and learned about surviving football. I knew his agent and kept in touch. He contacted me before I started with Olympiakos and this was my opportunity to sign him.
"Yaya loved it in Greece - the weather and the way we played was perfect for him. Our fans adored him. After his time in Ukraine, it was like seeing somebody get a new life after living in a mine. From day one, he was a sensation.
"He was very easy to work with, very calm and always with the right attitude. He just grew and grew as a leader and his progress was like a never-ending story."
Excelling in the centre of midfield alongside veteran Brazilian Rivaldo, Toure secured his first serious silverware.
He helped Olympiakos win the Greek league and cup double, tasted Champions League football for the first time and then played in the 2006 World Cup for Ivory Coast.
Having attracted the attention of other teams, he moved to Monaco later that summer.
"Even at a very big club like Olympiakos, we knew we were just one step for Yaya," Sollied added. "We knew he had to take another step for himself."
Again it was Seluk who orchestrated the move. And, again, Toure was happy to trust Seluk's judgement about where he should play next.
"There is a reason clubs trust me if I recommend a player," Seluk said. "For example, I recommended Yaya to Olympiakos, and they sold him for twice the money he cost them.
"After that I recommended Yaya to Monaco. They also made twice the money they spent. Normally, if I recommend players to a club, everybody wins and nobody loses. I don't see one club who loses money with me.
"Yaya trusts me 100% too. Before Ukraine, Kolo told him it was not good to go there, but instead he listened to me.
"We signed the contract for Metalist in Barcelona and I told Yaya that, in three or four years, you will play here in Barcelona too."
Seluk was right. After a mixed season at Monaco ended with him scoring the goals that kept them in the French top flight, he got his dream move to Barca.
Toure's stint at the Nou Camp would end unhappily, as his game time was limited under boss Pep Guardiola, but it still included a Champions League triumph in 2009, with him playing at centre-back in the final against Manchester United, and two La Liga titles.
Since moving to City for £24m in 2010, he has won the FA Cup and the Premier League title, while developing from a dedicated defensive midfielder into a swashbuckling scorer of vital goals and, this season, adding wicked free-kicks to his repertoire.
His desire to keep improving echoes what he learnt at ASEC as a boy, according to Guilllou.
Media playback is not supported on this device
"One of our values is to instil this desire to always do better and make the most of each training session to get better," Guillou added.
"Yaya is a perfectionist. What a lot of players discover at the end of their careers, he discovered at the start."
What next? According to Seluk, Yaya is happy at City, and is focused on gathering more trophies, for the team and for himself.
He could win four this season, and is also eyeing a fourth-straight African player of the year award in 2014. And however many prizes he ends up with, he is unlikely to lose his appetite for more.
"He has only got one career," said Seluk. "He wants to make the most of it."
Thanks to BBC World Service's John Bennett.


India completed a 4-0 series whitewash over Australia after winning the fourth Test in Delhi by six wickets.

The hosts bowled Australia out for 164 as Ravindra Jadeja took five wickets, allowing Cheteshwar Pujara to help seal the win with an unbeaten 82.
Spinner Nathan Lyon continued Australia's fightback, limiting India to 272 with a career-best 7-94.
Only Peter Siddle's 50 offered further resistance as India reached the 155-run target with the loss of four wickets.
Lyon picked up where he left off on day two with the wickets of Sachin Tendulkar and Virat Kohli in India's second innings to take his total to nine for the Test.
But the defeat ended a miserable series for the tourists, who  for the third Test, including vice-captain Shane Watson for a breach of team discipline.
It is also the first time that Australia have lost a series 4-0 since a defeat by South Africa in 1970.
Following a back injury to captain Michael Clarke, Watson was back in the Test team to skipper his country for the first time but the team selection fiasco and the series result adds a double layer of intrigue before Australia travel to England for the Ashes series in July.
Resuming on 266 for eight - having bowled out the tourists for 262 - the Indian tail had hardly settled before Lyon snared the final two wickets of Ishant Sharma and Pragyan Ojha with the first two balls of his first full over.
The renewed hope that Australia may have gained from a 10-run deficit swiftly diminished, though.
Glenn Maxwell opened the batting in place of Ed Cowan, but perished in the fifth over for eight as Jadeja claimed his first wicket on an action-packed day.
David Warner and Phil Hughes soon followed before Watson was dismissed by Pragyan Ojha for five and Australian crumbled to 94-7, with tail-end pace bowler Siddle proving the sternest test.
His 45-ball 50 then came to a close when he was stumped by Mahendra Singh Dhoni off Ashwin.
Lyon trapped Tendulkar for one as Australia tried to make the result more respectable, but Pujara continued to add quick runs at the other end as he guided his side home alongside Dhoni, who hit the winning runs and later received the Border-Gavaskar Trophy from both Sunil Gavaskar and Allan Border.
Match scorecard
We are using archive pictures for this series because several photo agencies, including Getty Images, have been barred from the ground following a dispute with the Board of Control for Cricket in India, while other agencies have withdrawn their photographers in protest.


A cancer vaccination is to be offered to gay men under the age of 45, Health Minister Mark Drakeford has said.

The jab for the human papilloma virus (HPV) - linked to cervical cancer - has been given to schoolgirls since 2008.
Expert advice has said vaccination can offer protection against other types of cancer commonly seen in gay men.
An advisory committee also recommended it for sex workers and people who are HIV positive, but is still considering its merits for adolescent boys.
Mr Drakeford said a targeted programme for sexually active gay men under 45 would be introduced following the recommendation of the Joint Committee on Vaccination and Immunisation (JCVI), which advises all UK governments.
"Men who have sex with men are a group who receive little indirect protection from the highly-successful HPV vaccination programme for adolescent girls," he said.
"I'm pleased to announce that I have approved the introduction of a new targeted HPV vaccination programme for men who have sex with men up to the age of 45.
"We will now give careful consideration about how this programme will be delivered and will make a further announcement in due course."
A JCVI recommendation on whether to offer the HPV vaccine to all adolescent boys is expected in early 2017.
Several organisations including Tenovus Cancer Care have called for the vaccine to be given to boys to protect them from head and neck cancer.
Dr Ian Lewis, director of research and policy at Tenovus, said: "Whilst this announcement is a step forward this change in policy does not go nearly far enough.
"We believe that this vaccination programme should be extended to cover adolescent boys at the same time as girls already receiving the vaccination in schools.
Welsh government has an opportunity to take this recommendation a step further and ensure that Wales is a world leader in preventing potentially epidemic cancers."


Music and theatre tickets are routinely being sold unlawfully on the UK's biggest secondary ticketing websites, according to consumer magazine Which?

Under the Consumer Rights Act 2015, buyers must be told the original face value of any tickets being resold and, where appropriate, the seat numbers.
After investigating more than 200 listings Which? found "numerous examples" of the rules being breached.
The findings of a government report into the market are due on Thursday.
One Direction, Arctic Monkeys, Adele, Elton John, Little Mix, Mumford and Sons and Radiohead are among the artists who have called for action against secondary sites, which they claim prevent fans from buying tickets at face value.
Calls have been made to make touting a criminal offence for concerts, plays and musicals - as is already the case for sporting events.
Others want the government to prevent tickets being resold at a profit, capping the price at the original face value, plus 10%.
At the time of writing, some sites are advertising tickets to see Radiohead's shows at the Roundhouse, London, this week for £5,900 - 91 times the original face value.
Which? looked at listings for Beyonce's Formation Tour, Catherine Tate's comedy show, Jersey Boys, Magic of the Musicals and Wicked the Musical across the four main ticketing sites - Viagogo, Seatwave, Stubhub and Getmein!
Researchers posed as sellers to find out what information was required when listing tickets - but discovered that the information often wasn't displayed to fans.
It found that Viagogo failed to consistently list the face value of tickets for Beyonce and Catherine Tate, despite sellers being legally obliged to enter this value.
Instead, Viagogo's small print said the face value of each ticket was within a certain range. For Beyonce, this range was often very large - from around £40 to more than £200.
None of the Viagogo listings, and only one on Getmein!, showed seat numbers, and many of the listings on Stubhub and Seatwave gave only row numbers or section numbers.
Alex Neill, director of policy and campaigns at Which? said: "It is clear the protections put in place by the Consumer Rights Act aren't being followed by some of the biggest players in the market, and no action is being taken against them.
"The government must crack down on bad practice so that people know what they're buying and don't get ripped off."
In response to the report, StubHub said its sellers must comply with the law, but added: "There are instances where sellers may not have access to this information at the time of listing, as some primary vendors do not provide this at the time of purchase."
Seatwave, GetMeIn! and Viagogo declined to respond.


A body found in a Worcester canal has been identified as a 23-year-old man who went missing on Christmas Day.

The body of Lewis Paul Mullan was recovered from the Diglis Basin by search and rescue teams on Saturday.
Officers are trying to trace his last movements and have appealed for witnesses.
"His death is not being treated as suspicious and the coroner has been informed," a West Mercia Police spokesman said.
Mr Mullan, from Worcester, was last seen getting out of a taxi at Commandery petrol station in the Sidbury area at 03:00 GMT but failed to return home.
"Our thoughts and sympathies are with his family at this very sad time," the spokesman added.


Scunthorpe have signed midfielder Duane Holmes on a two-year deal following his release by Huddersfield.

Holmes made 26 appearances for the Terriers after coming through the club's academy system, but was released by the Championship side in May.
The 21-year-old has also had loan spells with Bury and Yeovil.
USA-born Holmes is the Iron's third summer signing, following the arrivals of former Bradford winger Josh Morris and Walsall midfielder Sam Mantom.
Find all the latest football transfers on our dedicated page.


I once travelled around a key site in the Cuban missile crisis on a cart pulled by oxen with a guide called Stalin.

As we rattled through the mud alongside lush, green fields, I remember trying to imagine Soviet missiles travelling the same route five decades earlier, minus the oxen.
It seemed incredible that this quiet corner of tropical Cuba could once have been at the heart of a global stand-off, that could so easily have escalated into nuclear disaster. It was the huge slabs of concrete from the old missile silos that brought it home to me. They are still there, abandoned in the woods.
Fidel Castro was one of the main players in that crisis in 1962, and his death last weekend marks a symbolic end to the nearly very hot Cold War that then divided the world.
You would think all of that was old history. This month marks 25 years since the Soviet Union imploded and even the United States and Cuba have restored relations now. Fidel's death is like the final, rusty nail in the Cold War coffin. Or is it?
I now live in Moscow, and it sometimes feels like we're heading back to those days with worrying ease. Russia's president has openly lamented the Soviet collapse as a tragedy and in recent years Vladimir Putin has been busy trying to reassert Russia's right to be reckoned with as a global power.
Despite - or perhaps because of - the country's very real economic problems, he has made a big show of military might: from tank parades across Red Square, to devastating airstrikes in Syria.
It has all been accompanied by loud talk of enemies abroad who, according to Mr Putin, won the Cold War then proceeded to "humiliate" Russia and impose their "victor's values" around the world. Now Moscow and its values are making a comeback, Mr Putin says.
With all the sabre-rattling by politicians, it is reassuring that there is still no real hostility here at street level.
Just as in Cuba, people spent decades hearing how the big, bad United States was plotting to destroy their revolution - but longed to travel there, watched the films and listened to the music. Here, too, anti-Western feeling is officially cultivated. And for now it is superficial.
So I was not surprised that one polling agency recorded a big drop in such feelings only this week. That matches a sudden shift in the official rhetoric here since Donald Trump, a potential ally, won the race for the White House.
When Mr Putin addressed the nation this Thursday, his usual talk of "enemies abroad" was noticeably muted. He said he hoped to "normalise" relations with the US. And he stressed that Russia needs friends, not enemies.
Of course, the old Cold War talk could be ramped up again just as quickly. Shouting about external aggression and plots is a useful distraction after all, as the economy shrinks and living standards fall.
The Cubans have mastered that technique. And Russia's chief TV propagandist is obviously struggling to make the switch.
The day after Fidel Castro died, Dmitry Kiselyov hailed him as a hero on his weekly news show for having the guts to point those Soviet missiles at the United States back in 1962. The same presenter once uttered a stark warning on air to the United States, that Russia could reduce America to nuclear ash.
Clearly, it is not time to relax just yet.
But I cannot help thinking that maybe Mr Kiselyov - and a few others - would benefit from a ride into the countryside outside Havana to see those silos in the woods and talk to the Cubans who watched the missiles roll past their homes under cover of darkness.
They were the ones who realised that they had been pulled into the very epicentre of a political showdown that risked ending in their annihilation.


Aston Villa's awful start to 2017 continued as Barnsley sent them to a fourth straight Championship defeat - and second at home in four days.

Tom Bradshaw scored twice with 15-yard shots either side of the break, after on-loan Adam Armstrong had fired the Tykes ahead with a 25th-minute penalty.
From 2-0 down, Jonathan Kodjia offered hope, scoring from a narrow angle a minute after Bradshaw's first goal.
But Bradshaw's second condemned Villa to a seventh defeat in eight games.
Watched by their lowest league home crowd of the season, Villa are still seven points clear of relegation danger after a defeat inflicted by two strikers who were last season scoring their goals in the Midlands for League One clubs, Armstrong for Coventry City and Bradshaw for Walsall.
Barnsley are ninth, six points shy of a play-off place, after their first victory - and goals - in three games.
Villa had a lot of early first-half possession and created decent openings, with Henri Lansbury going close three times, while Albert Adomah powered a shot just over and former Barnsley captain Conor Hourihane missed a free header.
But, out of the blue, the game changed on 25 minutes when winger Marley Watkins fell heavily under Jordan Amavi's challenge and striker Armstrong, on loan from Newcastle, confidently converted the resulting penalty to Sam Johnstone's right.
Kodjia twice went close for Villa, either side of Barnsley's Liverpool loanee Ryan Kent having a free-kick tipped away for a corner by home goalkeeper Johnstone.
However, on 43 minutes, Barnsley worked a second goal from the right, with Andy Yiadom flicking on for Bradshaw to clip a neat right-foot finish inside Johnstone's right post.
Villa's response was instant, scoring just a minute later when Adomah's low ball from the right made it beyond the far post, where Kodjia turned in coolly from a narrow angle.
But, on 58 minutes, Barnsley made the game safe when Villa failed to clear their lines from a badly-defended free-kick, allowing Bradshaw to drill a low left-foot finish into Johnstone's bottom right corner - only a seventh goal of the season for the summer signing.
Aston Villa boss Steve Bruce told BBC WM:
"It's not good enough. That's for sure. We started off all right for the first 25 minutes and had a few chances but, as has happened over the last four or five weeks, we didn't take them, we make a mistake, we get punished and it goes round in a vicious circle. Confidence drains away, it takes over everything and it ends up being one of those ugly nights.
"We have to go back to the basics of what we were and how we changed things round when we first came in four months ago. We have to cut out the silly mistakes. We handed them two goals.
"The reason why we've got one of the biggest wage bills in the Championship is we've got to deal with the mentality and expectation. That's why they get paid more than anyone else in this division.
"But I'm convinced they are made of the right stuff and can get better, and it's my responsibility to make them better."
Barnsley boss Paul Heckingbottom told BBC Radio Sheffield:
"We had to work really hard for that. There's lots of different ways to win and we showed it all in one game. We were under pressure a lot in the first half but we defended really well.
"We're an aggressive team. We don't play with any fear. We use the fact we're a small group of players, staff and have a small budget as part of our power and what we are.
"This is us, what we're given, and how we're going to excel. What can we do better than everyone else? We don't shy away from what we're short of.
"Tom Bradshaw took his goals well. Both instinctive finishes. He's scored a lot that way, not only with us , but with Walsall. His uncle's a Villa fan. He was looking for him in the crowd to celebrate."
Match ends, Aston Villa 1, Barnsley 3.
Second Half ends, Aston Villa 1, Barnsley 3.
Birkir Bjarnason (Aston Villa) wins a free kick in the defensive half.
Foul by Ryan Williams (Barnsley).
Foul by Leandro Bacuna (Aston Villa).
Adam Hammill (Barnsley) wins a free kick in the defensive half.
Hand ball by Gethin Jones (Barnsley).
Corner,  Aston Villa. Conceded by Angus MacDonald.
Attempt blocked. Leandro Bacuna (Aston Villa) left footed shot from outside the box is blocked.
Jonathan Kodjia (Aston Villa) wins a free kick on the right wing.
Foul by Angus MacDonald (Barnsley).
Attempt missed. Jonathan Kodjia (Aston Villa) right footed shot from the right side of the box is just a bit too high.
Attempt missed. James Chester (Aston Villa) header from the centre of the box misses to the right. Assisted by Andre Green with a cross following a corner.
Corner,  Aston Villa. Conceded by Andy Yiadom.
Substitution, Barnsley. Ryan Williams replaces Ryan Kent.
Attempt missed. Albert Adomah (Aston Villa) right footed shot from the centre of the box is too high following a corner.
Corner,  Aston Villa. Conceded by Andy Yiadom.
Foul by Leandro Bacuna (Aston Villa).
Adam Hammill (Barnsley) wins a free kick on the left wing.
Foul by Birkir Bjarnason (Aston Villa).
Andy Yiadom (Barnsley) wins a free kick in the defensive half.
Attempt missed. Scott Hogan (Aston Villa) right footed shot from the centre of the box misses to the left. Assisted by Leandro Bacuna.
Jordan Amavi (Aston Villa) wins a free kick in the defensive half.
Foul by Ryan Kent (Barnsley).
Foul by Leandro Bacuna (Aston Villa).
Adam Armstrong (Barnsley) wins a free kick in the attacking half.
Substitution, Barnsley. Adam Hammill replaces Tom Bradshaw.
Attempt saved. George Moncur (Barnsley) right footed shot from outside the box is saved in the bottom left corner.
Substitution, Aston Villa. Leandro Bacuna replaces Jack Grealish.
Offside, Aston Villa. Andre Green tries a through ball, but Scott Hogan is caught offside.
Attempt saved. Andre Green (Aston Villa) right footed shot from the left side of the box is saved in the centre of the goal.
Corner,  Aston Villa. Conceded by Gethin Jones.
Delay over. They are ready to continue.
Delay in match Marley Watkins (Barnsley) because of an injury.
Substitution, Aston Villa. Andre Green replaces Henri Lansbury.
Substitution, Aston Villa. Birkir Bjarnason replaces Alan Hutton.
Attempt missed. Jack Grealish (Aston Villa) right footed shot from outside the box is too high. Assisted by Scott Hogan.
Conor Hourihane (Aston Villa) wins a free kick in the defensive half.
Foul by Matthew James (Barnsley).
Hand ball by Conor Hourihane (Aston Villa).


Scientists have developed a drug that mimics sunlight to make the skin tan, with no damaging UV radiation involved.

The drug tricks the skin into producing the brown form of the pigment melanin in tests on skin samples and mice.
Evidence suggests it will work even on redheads, who normally just burn in the sun.
The team at Massachusetts General Hospital hope their discovery could prevent skin cancer and even slow the appearance of ageing.
UV light makes the skin tan by causing damage.
This kicks off a chain of chemical reactions in the skin that ultimately leads to dark melanin - the body's natural sunblock - being made.
The drug is rubbed into the skin to skip the damage and kick-start the process of making melanin.
Dr David Fisher, one of the researchers, told the BBC News website: "It has a potent darkening effect.
"Under the microscope it's the real melanin, it really is activating the production of pigment in a UV-independent fashion."
It is a markedly different approach to fake tan, which "paints" the skin without the protection from melanin, sun beds, which expose the skin to UV light or pills that claim to boost melanin production but still need UV light.
But the team is not motivated by making a new cosmetic.
Dr Fisher said the lack of progress in skin cancer - the most common type of cancer - was a "very significant frustration".
He added: "Our real goal is a novel strategy for protecting skin from UV radiation and cancer.
"Dark pigment is associated with a lower risk of all forms of skin cancer - that would be really huge."
Tests, detailed in the journal Cell Reports, have shown the melanin produced by the drug was able to block harmful UV rays.
Eventually the scientists want to combine their drug with sun-cream to give maximum protection from solar radiation.
Dr Fisher said everyone should "absolutely" use sun-cream but its weakness was it "keeps you pale".
The way the drug works could also allow a ginger tan, as the genetic mutation that causes red hair and fair skin disrupts the normal process where UV light leads to dark melanin.
It is not yet clear if the drug might have the unintended consequence of affecting the glorious hair colour, but it is thought the hair follicle is too deep in the skin for the drug to reach.
But whether you are ginger, blonde or brunette, the drug is not yet ready for commercial use.
The researchers want to do more safety testing, although so far there has been "no hint of problems".
They will probably want to give it a better name than an SIK-inhibitor too.
Matthew Gass, from the British Association of Dermatologists, said the study was a "novel approach" to preventing skin cancer.
He added: "A lot more research has to be done before we see this sort of technology being used on humans, however, it's certainly an interesting proposition.
"Skin cancer rates in the UK are going through the roof... any research into ways that we can prevent people from developing skin cancer in the first place is to be welcomed."
Stopping UV damage could have an extra boon beyond cancer - slowing the appearance of ageing.
Dr Fisher's final piece of promise for the research is: "Many people would say the obvious and most dramatic sign of ageing is what skin looks like and even casual UV damage over the years causes damage.
"Medically it is very difficult to focus on, but if it is tremendously safe then it could keep skin healthier for longer."
Follow James on Twitter.


A public appeal by a US military cemetery to "put a face" to each man, woman and child it commemorates has unearthed 1,000 photographs.

Nearly 9,000 Americans who died during World War Two are remembered at the Cambridge American Cemetery.
Staff located 3,000 photographs of former servicemen ahead of a public appeal in February.
Cemetery associate Tracey Haylock said the photographs help visitors realise how "really young most of them were".
The cemetery, at Madingley, near Cambridge, is the UK's only permanent US World War Two military burial ground.
It commemorates 8,914 people, including those for whom there are no remains because they were lost at sea, or who took off from UK air bases but were not seen alive again.
The photo appeal was launched to mark 75th anniversary of the "friendly invasion", when US forces first arrived in the UK in February 1942.
Guide Suzie Harrison said: "Being able to put a face to the name on a headstone or on the Wall of the Missing really resonates with visitors."
The photographs will be placed beside each headstone or along the Wall of the Missing in the run-up to US Memorial Day on 29 May.


The chief whip of South Africa's governing political party has called on its entire leadership - including President Jacob Zuma - to step down.

Jackson Mthembu said fraud charges against the finance minister, Pravin Gordhan, were politically motivated.
He said the current government was worse than the apartheid state.
The ANC, which liberated South Africa from white minority rule in 1994, suffered its worst ever electoral performance in August.
Mr Mthembu said he excluded no-one in the leadership from his call for resignations - not even himself.
"President Jacob Zuma is the president of the ANC (African National Congress)," he told ENCA television.
"When I said the entire ANC leadership that has already taken collective responsibility must take the fall, I meant everybody, myself included, including President Zuma."
Quizzed by local journalists on the comparison to the apartheid state, he said it had also used "state instruments" to suppress the people.
However, he said even the apartheid regime "never pursued its own ministers".
"Perhaps we are not the leadership that can take the ANC forward under these conditions," he said.
Since taking office, Finance Minister Pravin Gordhan has attempted to distance himself from Mr Zuma's business allies.
However, he is now facing allegations of misconduct from when he was in charge of the tax collection service a decade ago.
The fraud charges relate to alleged severance payments made to two senior executives at the South African Revenue Service (SARS).
Mr Gordhan is also supported by the party's deputy president, Cyril Ramaphosa.
There have been growing rifts within the ANC in recent months.
In the August elections, the party suffered its worst results since the election of Nelson Mandela in 1994, losing several key battlegrounds.
Voters were seen as reacting to high unemployment and the scandalssurrounding President Jacob Zuma.


Teaching assistants in County Durham have called off their latest round of industrial action.

Members of the Unison and ATL unions were due to strike for three days from Tuesday as part of a protest over proposals to impose new contracts.
The new deals would pay them only during term time - resulting in cuts of up to 23%.
Talks are being held between the unions and Durham County Council in a bid to resolve the situation.
Last week the council said it would be suspending its plans to dismiss and re-employ the assistants on new contracts from January while it reviews the matter.
That review is due to be completed in September.
The authority fears it could face equal pay claims from other employees if it does not make the cuts.


Great Britain's men claimed a stunning 4x100m relay gold at the World Championships as Usain Bolt pulled up injured in his final ever race.

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On a febrile night of track and field, Mo Farah's own finale ended with 5,000m silver as he was beaten in a global final for the first time in six years.
But with the young GB women's sprint quartet storming to a silver of their own it felt like a generational shift as the stadium came alive just as it had at the 2012 Olympics.
Never before has a British team won a world sprint gold, but the quartet of CJ Ujah, Adam Gemili, Danny Talbot and Nethaneel Mitchell-Blake ran a near-perfect race to hold off the fancied US team, with Japan taking bronze as Bolt collapsed halfway down the home straight.
It was a horrible way for Bolt to end his career, his hamstring appearing to go as he attempted to chase down the two men in front of him.
A wheelchair was brought to his side before he was helped to his feet and managed to limp away, but it means he leaves his final championship with only a bronze from the individual 100m to show.
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Farah's defeat had threatened to suck the noise out of the packed stadium, with Ethiopia's Muktar Edris holding off his desperate late charge to become the first man to beat the Briton in a major final since his compatriot Ibrahim Jeilan did so over 10,000m at the 2011 Worlds in Daegu.
But then the British quartet of Asha Philip, Desiree Henry, Dina Asher-Smith and Daryll Neita went one better than their bronze at the Rio Olympics a year ago to take a brilliant silver behind the USA in 42.12 seconds, Jamaica taking bronze as that country's disappointing World Championships continued.
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The host nation had only Farah's 10,000m gold to show for the first eight days of competition, the mood reflective rather than celebratory as the team racked up five fourth places.
In the space of 15 minutes, that mood was transformed.
Britain's men had looked smooth in qualification on Saturday morning, and they then produced their best to shock the American favourites and light up the London Stadium.
Ujah got out of the blocks brilliantly, his reaction time to the gun of 0.124 secs the best in the field, before Gemili - who only a few weeks ago at the national trials looked a shadow of the athlete who finished fourth over 200m in Rio - powered down the back straight.
With each baton change exemplary, Talbot backed up the personal best he ran in the individual 200m with a fine bend, before Mitchell-Blake held his nerve and form to keep 100m silver medallist Christian Coleman at bay.
Not since GB's team won gold at the Athens Olympics 13 years ago have they delivered in such glorious style, the display a vindication for both the practice the team have put in and the closeness between the individual components.
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CJ Ujah: "I am proud of these guys and those behind the scenes. It is crazy to do this in London. I can't even talk right now."
Adam Gemili: "We are world champs! To run it with Danny Talbot after such disappointment in London 2012, it is so special to come back. Thank you to everyone. It's crazy. Honestly a dream and a reality tonight. Wow!"
Danny Talbot: "2012 didn't go our way and we have been working hard since then. It's a massive team effort and we win as a team and lose as a team. We are world champions at home. We will never get this feeling again."
Nethaneel Mitchell-Blake: "I wasn't sure if I had won or not, I gave it my all but I could see Christian Coleman out of the corner of my eye. The feeling of euphoria was from infinity. I can't register it. We smashed the British record to pieces."
Jamaica had been in third when Bolt took the baton, and the Usain of old would have believed he could have chased his rivals down.
But in his valedictory season, the three-time Olympic 100m and 200m champion is no longer the force he was, even as his draw remains undimmed.
And 50m down the straight, he grimaced and pulled up before collapsing into his lane, his fall lost in the bedlam for the British triumph.
Few had seen the greatest career in athletics history ending like this, and Bolt must now regret not stepping away after his three golds in Rio.
Along with Farah, he has been the untouchable, unbeaten star of the last decade, but the mantle - and the baton - has now passed to the next generation.
Eight-time world champion Michael Johnson on BBC One
This wasn't a win where the USA dropped the baton or Jamaica ran out of the zone - Great Britain beat everyone fair and square. That was an amazing performance in front of a crowd that has been wanting a gold medal.
They delivered it on a night where everyone was here maybe not necessarily to see this - but it is an amazing story for a team who worked really hard.
Adam Gemili was just ridiculous down the back stretch. He opened such up a gap that was always going to be hard for anyone to chase down.
This is a special gift to this crowd and for those guys to go out there and put on a performance like that is fantastic. They deserve this.
Daryll Neita, who held off Jamaica by 0.07 on the anchor leg, said: "We smashed it. We worked so hard for this.
"I tried my best down that last stretch and I'm glad to bring the team home to silver. We work so hard as a team so we are delighted."
Dina Asher-Smith, who finished an agonising fourth over 200m after an injury-hit season, added: "To upgrade from Olympic bronze to world silver with these girls has been absolutely incredible, and to do it at home means so much."


Police investigating the rape of a woman near a primary school in Renfrewshire have released an e-fit image of the suspect.

The 27-year-old victim was attacked behind Wallace Primary in the village of Elderslie on 20 February.
The suspect is described as white, aged between 35 and 50, with dark receding hair, and of medium to stocky build.
Detectives have urged anyone who may recognise him or who witnessed anything suspicious at the time to come forward.
The women was hit and knocked to the ground as she walked along a path between Byres Road and Glenmalloch Place before being raped.
Her attacker was wearing dark trousers and a light-coloured t shirt.
Det Insp Louise Harvie said: "Whilst we understand that this crime has caused a great deal of concern amongst the local community, I would like to reassure everyone that our officers are doing absolutely everything they can to investigate this crime.
"We are completely focussed on solving this crime and I cannot stress enough the importance of members of the public coming forward with any information that could potentially assist with our inquiries."


A Roman lock and a 17th Century seal discovered by former Rolling Stones bassist Bill Wyman have gone on display.

Metal detecting enthusiast Wyman, who quit the band in 1993, found several of the items within the grounds of his Suffolk manor house.
He has loaned them to the Moyse's Hall Museum in Bury St Edmunds as part of its Lost Property exhibition.
The museum said it was "privileged" to have access to Wyman's collection.
Wyman, who had been a founder member of the Rolling Stones, has been a "serious detecting enthusiast" since he bought his first metal detector in the 1990s.
He said it helped him uncover the site of a Roman homestead.
His first find was a water jug, which he found at his own property near Bury St Edmunds.
It is on display together with a Bronze Age sword and palstaves bought for him by Rolling Stones drummer Charlie Watts.
Wyman started selling his own metal detectors in 2007 and told of his treasure-detecting adventures in his illustrated book Treasure Islands, co-written with Richard Havers.
His passion project became the inspiration for a song by Swede Mason.
The Lost Property exhibition is being held until 1 October.


The Scottish government has set up an international panel of education experts during the first cabinet meeting of the Holyrood term.

Education and the economy were the key topics as Nicola Sturgeon convened her new cabinet at Bute House.
One of their first decisions was to establish an international council of educational advisors.
Ms Sturgeon said her government was "wasting no time in getting back to business".
The first minister has reshuffled her gender-balanced cabinet, with her deputy John Swinney moving from finance to education, and Derek Mackay and Fergus Ewing becoming secretaries for the first time.
The new cabinet has separate finance and economy posts, held by Mr Mackay and Keith Brown respectively, reflecting the priority placed on the topic by the new SNP government.
Ms Sturgeon said: "The cabinet has been shaped to reflect our key priorities of education and the economy, and both topics were top of the agenda at the meeting."
The international council of educational experts will advise the government on improvements to schools and lessons which can be learned from other countries.
The Scottish government said the panel, which will be formed over the summer, will include authorities on closing the attainment gap in schools, achieving equality and educational system reform.
Ms Sturgeon said the announcement "demonstrates our determination to learn lessons from around the world to ensure that Scotland is a global leader in education".
She said: "Giving every child in Scotland an excellent education and improving prospects for all our young people is at the heart of the Scottish government's priorities this term.
"This independent body of international experts will challenge and scrutinise our plans as we look to return Scotland to the top of the class."
Scottish Conservative education spokeswoman Liz Smith welcomed the announcement, but accused the SNP of being "reluctant to make use of international data" in schools.
She cited a written answer from Mr Swinney where he said the government had no plans to re-enter Scotland into international indexes such as the Trends in International Mathematics and Science Study and the Progress in International Reading Literacy Study,
Ms Smith said: "There are undoubtedly lessons to be learned from what works well in other countries, but we hope this will be accompanied by a change of heart from the SNP when it comes to removing Scotland from some key international measures of educational attainment.
"Only today, I received a parliamentary answer from John Swinney which made clear the SNP is still very reluctant to make use of rich international data when it comes to pupil attainment."
Cabinet was also updated on the probes into disorder at Saturday's Scottish Cup final by Justice Secretary Michael Matheson.
Police Scotland and the Scottish Football Association are looking into the chaotic scenes at Hampden, which saw police horses deployed as fans fought on the pitch.
Mr Matheson has urged the SFA to report on the matter before the new football season begins, so any lessons learned can be implemented.
Ms Sturgeon will outline her key priorities for government in the Holyrood chamber on Wednesday, while Culture Secretary Fiona Hyslop will lead a debate on the referendum on European Union membership on Thursday.


South Africa and New Zealand were left frustrated after persistent rain and a wet outfield at Derby washed out their Women's World Cup game on Wednesday.

The 10:30 BST start for the group game was delayed, and with no respite from the weather, play was abandoned without a ball bowled at about 14:15 BST.
Both sides won their opening games, but take a point apiece from this match.
New Zealand - as one of the tournament favourites - will be the more frustrated side after the washout.
Both are next in action on Sunday, with South Africa meeting West Indies in Leicester, while White Ferns captain Suzie Bates has the chance to play her 100th one-day international as New Zealand face rivals Australia at Bristol.


Plans for a Swansea Bay tidal lagoon would be approved by the Liberal Democrats immediately, the party said as it launched its general election campaign in Wales.

The scheme's developers say electricity generated by the six-mile lagoon would power 150,000 homes for 120 years.
Ex-Lib Dem Energy Secretary Sir Ed Davey accused Conservative ministers of delaying the project for too long.
A government-commissioned review backed the £1.3bn lagoon scheme in January.
Ministers would have to agree a deal on the level of subsidy required for the energy generated and a marine licence would also need to be approved.
The Swansea Bay project, involving 16 turbines along a breakwater, is seen as a prototype for much larger lagoons.
These could include one off the coast of Cardiff - east of Cardiff Bay - Newport, Bridgwater Bay in Somerset, Colwyn Bay and west Cumbria, north of Workington.
The Lib Dems said more than 30,000 jobs could be created across Wales by the schemes.
Sir Ed said tidal lagoons were "vital for creating Britain's low carbon future and will provide extremely reliable and consistent energy for at least 120 years".
"Liberal Democrats would go ahead immediately with the lagoon at Swansea Bay and start planning for further lagoons in Wales and other parts of the UK," he added.
In January, current Energy Secretary Greg Clark said ministers would consider the recommendations and "determine what decision is in the best interests of the UK energy in the long term".
The Liberal Democrats are aiming to reverse their decline in the polls next month, after losing two of their three MPs in Wales at the 2015 general election.
In last week's local elections the party lost 11 Welsh council seats and now has 62 councillors in Wales.
Welsh Lib Dem leader Mark Williams was joined at the campaign launch in Cardiff by UK party leader Tim Farron, who warned Wales would suffer if Mrs May won a big majority on 8 June.
"If the Tories get a landslide, Wales will be taken for granted," he said.
"It is time that we gave the people of Wales, the people of the United Kingdom some hope.
"Wales, like other parts of the country, remembers what it was like to live under a Conservative government with a landslide majority in the 1980s," Mr Farron added.
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There's been a terror attack in London on Sunday overnight.

Shortly after midnight a van drove into a crowd of worshippers coming out of evening prayers at a mosque in Finsbury Park in North East London.
There are extra police in the area, making things safe, and many of the roads nearby have been closed.
Several people are being looked after in hospital and one person has sadly died.
Police believe the driver of the van was acting alone, and a man has been arrested at the scene.
If anything in the news upsets you please read here.
Prime Minister Theresa May said police are calling the incident a terrorist attack, and said "Hatred and evil of this kind will never succeed."
Mrs May spoke outside Downing Street and said, "Our thoughts and prayers this morning are with the family and friends of the man who died and those who were injured."
She thanked the quick response of police and the emergency services.
Mrs May has promised extra police resources to reassure communities, especially around Mosques.
She also said, "It is a reminder that terrorism, extremism and hatred take many forms; and our determination to tackle them must be the same whoever is responsible."
The Prime Minister described the Capital as "home to a multitude of communities that together make London one of the greatest cities on earth."
Home Secretary Amber Rudd described it as an appalling incident, and said:
"We must all continue to stand together, resolute, against all those who try to divide us and spread hate and fear."
Labour leader Jeremy Corbyn, who is also the local MP for the area, said on Twitter: "I'm totally shocked at the incident at Finsbury Park tonight.
"I've been in touch with the mosques, police and Islington council regarding the incident. My thoughts are with those and the community affected by this awful event."
Mayor of London Sadiq Khan promised extra police to reassure people in the area, especially those observing Ramadan. He has also asked people to "remain calm and vigilant".


Alastair Cook and Joe Root hit centuries as England laid down a strong platform on day one of the second Test against Pakistan at Old Trafford.

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Cook's 105 was his 29th Test hundred, putting him level with Sir Donald Bradman, and helped his side to 314-4.
Root, who put on 185 with Cook for the second wicket, was unbeaten on 141 at stumps, his 10th Test century.
Mohammad Amir took 2-63, including bowling Cook, but Pakistan - who lead the series - toiled on a flat pitch.
England's batting was much improved from their 75-run defeat in the opening Test at Lord's, when they were dismissed for 272 and 207.
Much of the pre-match talk surrounded their struggles against Yasir Shah, who took 10 wickets at Lord's, but Cook and Root scored 39 and 45 respectively against him.
On a pitch expected to provide assistance to the spinners, Yasir conceded 111 runs off his 31 overs.
James Vince was dropped by Younus Khan at slip before being caught behind for 18 off Rahat Ali, while Gary Ballance combined for 78 with Root before falling for 23.
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Alex Hales' departure in the seventh over - bowled by a seaming Amir delivery for 10 - meant England's captain and new number three had to negotiate the recovery.
Cook once again showed his ability to accumulate - his 81 at Lord's was quick by his standards - as gentle pushes with excellent timing, described as 'polite' by former Pakistan captain Ramiz Raja, regularly found their way to the boundary.
Root, in fact, briefly overtook his partner and was first to the half-century, but Cook was soon back in front and raising his bat to a standing ovation.
The century partnership was near chanceless, barring an edge from Cook off Yasir that flew just wide of slip, though the left-hander would eventually be bowled off an inside edge by another swinging Amir delivery on the stroke of tea.
Root's last Test hundred came 10 innings ago, against South Africa in January, and while his place has not been under pressure, the move to number three after the Sri Lanka series has been under scrutiny.
He made 48 and nine at Lord's, though it was the manner of his dismissals - two slogs, one to Yasir - that had prompted further scrutiny.
At Old Trafford, he exuded calmness in defence and attack, with his first slog coming when he was on 66. He batted for six hours and struck 18 fours.
The only time Root looked nervous was when Amir narrowly beat his outside edge twice in the same over, while his celebration on reaching three figures had more than a hint of past exasperations being put to rest.
Indeed, as he said at the end of play: "There was some frustration from before of not getting a big score. It was nice to do so. We played a lot straighter."
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Hales and Vince were out cheaply on what was described as a "belter" of a pitch by former England batsman and Test Match Special's Sir Geoffrey Boycott.
Hales was superbly set up by Amir, who first beat him with an inswinger then bowled him with the same delivery, the right-hander's footwork letting him down on both occasions.
Later, with Root in the 90s, Vince was caught behind trying to drive from wide of off stump, soon after he had been dropped at slip playing a similar shot.
Cook told Test Match Special: "I thought the way we played was much calmer. We've set the game up. I've been in good nick all through the summer, with Essex as well. I've not quite got a good score for England this year. I know this is not a massive score but it's nice to get a hundred.
"We're happy at the moment playing four seamers and a spinner. Just because we had one bad performance, I don't think you should change everything. We are a comfortable side playing that system, and I didn't think we should change it."
Root: "I thought the way he played was a really mature innings, which is what you expect from your captain. We've bounced back as a batting unit in this Test match. The way we responded is really good leading into the rest of the game."


A cycle track will run through a Derby nature reserve despite concerns over its impact on wildlife.

The track will be linked to the city council's new ??28m velodrome and will be built on part of The Sanctuary nature reserve.
Derbyshire Wildlife Trust said it was a "great pity" that the council had approved the plans.
But Labour councillor Sara Boulton said the new facility would only take up a "slice of the land".
Councillors voted on the cycle track planning proposal on Thursday night, and it was passed by six votes to five.
Ms Boulton, chair of Derby City Council's planning committee, said: "In actual fact it's only a slice of the land, it's 18% of the total area of The Sanctuary that will be made up of this close-circuit cycle track.
"We listened to Derbyshire Wildlife Trust and a [council] environmental officer, and it wasn't an easy decision."
Tim Birch, a Derbyshire Wildlife Trust Conservation manager, said: "It's a very sad day for Derby city in terms of the wildlife that will now be impacted.
"It's a great pity that a local nature reserve that was established by Derby City Council will now be destroyed by that council."
Local ecologist Nick Moyes said: "It's not the end of it, we'll have to go away and have a think about that one."
However, Peter Turner from Derby Mercury Cycling Club, who is also a member of the wildlife trust, said: "I see both sides of the issue.
"I think the actual effect of people cycling on the track has been over emphasised.
"Cycling is quiet, we're not noisy and I don't see that as being such a big issue for the birds as made out."


A British firm has developed autonomous car software that could be used by a variety of vehicle manufacturers.

15 July 2016 Last updated at 17:48 BST
Most of the high-profile work on self-driving cars has come out of the United States, where Google and Tesla have been testing their technology.
Oxford-based Oxbotica took the BBC's Rory Cellan-Jones for a drive and told him that the technology would be tested in a public trial in London this year.


The government has been defeated in a Commons vote on the control that parent companies can exercise over pubs.

MPs voted 284 to 259 in favour of an amendment allowing landlords an independent rent review and to buy their beer on the open market.
So-called "tied pubs" are required to buy supplies - often at high prices - from the companies that own the pubs.
Campaigners said the "historic" vote would help "secure the future of the Great British pub".
The amendment to the Small Business, Enterprise and Employment Bill was put forward by Lib Dem Greg Mulholland.
Mr Mulholland, the chairman of the all-party Parliamentary Save the Pub group, described the "tie" arrangement made between a pub and its owner as an "archaic" and "extraordinary" system.
It is thought to be the government's first defeat on one of its own bills since the 2010 election.
Ministers want to create a pubs code, aimed at helping pub landlords struggling to pay rent or beer costs.
It includes the right to request a rent review after five years.
But campaigners wanted the automatic right for pub landlords to exchange their tenancy for an independently-assessed market rent without any "tie".
In an attempt to head off a defeat on the amendment, which was signed by MPs of all parties, Business Minister Jo Swinson said the government would introduce new measures to allow pub landlords to apply for "market rent" rates from after two years, if a review found other measures in the bill had not helped them sufficiently.
But Mr Mulholland said this would be "business as usual".
He told MPs the new clause, which was backed by Labour, had been drafted by lawyers and publicans and would come in gradually, reducing the impact on the industry.
He added: "This is a reasonable gradual process that will simply bring back market forces into a sector that frankly has become grotesquely anti-competitive."
Tim Page, chief executive of the Campaign for Real Ale, said he was "delighted" that "after 10 years of our campaigning, MPs have today voted to introduce a market rent only option for licensees tied to the large pub companies - a move that will secure the future of the Great British pub".
The Federation of Small Businesses said it was "a historic day for tied publicans who look forward to a more open and competitive marketplace".
But the British Beer and Pub Association said the outcome was "hugely damaging".
Chief executive Brigid Simmonds said: "This change effectively breaks the 'beer tie', which has served Britain's unique pub industry well for nearly 400 years."


Avon and Somerset's new chief constable has said he wants to build pride in the force, which has had four chiefs in three years.

Former Hampshire police chief Andy Marsh replaces Nick Gargan, who quit after being found guilty of misconduct by an independent panel.
Mr Marsh has taken a pay cut to return to the force which he joined as a constable in 1987.
His appointment was confirmed on Monday.
Mr Marsh has led Hampshire Constabulary for three years and is a former assistant chief constable of the Wiltshire and Avon and Somerset forces.
He told BBC Radio Bristol: "This force means a great deal to me.
"I feel a huge sense of commitment and affinity to this organisation and the people in the communities."
He added: "Policing's been through a difficult few years in Avon and Somerset. The budget's been cut by Â£59m over the last five years - that's a reduction of about 600 officers.
"So all of the change has been difficult anyway but put on top of that the issues around senior leadership in Avon and Somerset and of course, I don't underestimate the size of the challenge ahead of me.
"I want to build a sense of pride in the constabulary both from the officers and staff who work for it and the public who expect to receive our services, confidence in the leadership of the organisation."
Mr Gargan replaced Colin Port, who quit as chief constable in 2012 after the new police and crime commissioner asked him to reapply for the job. Acting chief constable John Long filled in following Mr Gargan's suspension in May 2014.


The first professional contract signed by footballing legend Sir Stanley Matthews is to go on sale at auction.

Sir Stanley signed for his home team of Stoke City in 1932 and was knighted while still playing professionally.
As well as £5 a week in wages, he was offered a £10 signing-on fee "plus the usual bonus" - a princely sum for a player at the time.
The family behind the sale hope the British Football Museum will purchase the piece of sporting history.
Brothers David, 53, Andy, 56, and Graham Lockett, 61, who live in Stoke and support the club, are also selling a second Sir Stanley contract, dated 1935.
Their father Les took ownership of them in exchange for a debt and were discovered by his sons while they were having a "a clear out" after his death.
"That's the way business was done back in the 60s. A bit like a pawn shop," David said.
"The contracts have been gathering dust in a drawer for nearly 50 years."
Sir Stanley's wages rose in 1935 to £7 - £8 if he made it into the first team - which equated to about £350 a year.
The family said it was important for people to know what top players earned in the 1930s.
"Compared to what they earn today, it may seem ridiculous but at the time it would have been a lot of money," David added.
Sir Stanley, born in Hanley on 1 February 1915, played almost 700 games for Stoke and Blackpool and gained 54 England caps before retiring in 1965, aged 50.
He died in 2000, aged 85.
Sir Stanley, who was knighted in 1965, was described by then-Prime Minister Harold Wilson, as "a symbol of the country which gave football to the world, and internationally a symbol of English sportsmanship in the days when that was a quality acknowledged worldwide".
The contracts go under the hammer with Hansons Auctioneers on 22 August with a guide price of between £1,000 to £2,000 for the 1932 contract and £500 to £800 for the 1935 document.


It was the Welsh language radio show that accidentally became a UK-wide hit.

When it was launched 75 years ago this week, in war-ravaged 1942, the BBC's Welsh hymn-singing programme Caniadaeth y Cysegr was only broadcast throughout Britain because of a lack of transmitters to split the Welsh and English home service signals.
But when the end of World War Two saw more masts returned to the BBC from military use and Caniadaeth y Cysegr became a Welsh-only broadcast, the BBC was inundated with complaints from listeners in England.
In the light of this apparent universal popularity, a hymn-singing television series was created by BBC Wales in January 1961- Dechrau Canu Dechrau Canmol.
Shortly after, the format was adopted in English by the BBC in London.
Caniadaeth y Cysegr can therefore also lay claim to being the "grandmother" of Songs of Praise.
Welsh composer Richard Elfyn Jones believes he understands the appeal Caniadaeth y Cysegr held for a pan-British wartime audience.
"I have no doubt that the Welsh heritage excels somewhat, especially in the quality of the hymns, compared to the material from other nations, including in English," he said.
In the year of Caniadaeth y Cysegr's debut, the Allies launched a doomed raid on the German-occupied French port of Dieppe, another British radio stalwart took to the air in the form of Desert Island Discs, the Queen registered for War Service and soap rationing was introduced.
According to the Radio Times for that week, the first programme on 15 February was presented by Idris Lewis with singers Cantorion Llanelli and conducted by DH Lewis.
Other radio programmes that day included Marching Songs of Britain and Sincerely Yours, Vera Lynn.
The news bulletin at 17:00, Newyddion, was also presented in Welsh.
Nowadays, Caniadaeth y Cysegr is broadcast on BBC Radio Cymru on Sunday afternoons at 16:30, online at bbc.co.uk/radiocymru and on BBC iPlayer Radio.
Radio Cymru Editor Betsan Powys said: "Caniadaeth y Cysegr is a jewel in the crown of Radio Cymru and an important part of the station's story.
"2017 is a milestone for Welsh language broadcasting as Radio Cymru marks its 40th year and Caniadaeth y Cysegr celebrates 75.
"It's good to know that the series has had such an influence in Wales and beyond."
However, current producer Ceri Wyn Richards has a warning for the next 75 years.
"I've been producing Caniadaeth y Cysegr for five years and it's a real privilege," she said.
"I am concerned, however, that the number of Cymanfa Ganu festivals is on the decrease and the tradition of singing in 'SATB' has weakened during my relatively short period as a producer.
"Although there are strongholds which respect the tradition, we've all got a duty - if we're interested in the history of our hymn singing - to ensure the continuity of this important heritage."


A dog has been rescued after going over a cliff while on a walk at the Butt of Lewis in the Western Isles.

Police Scotland was alerted to the incident at 11:49.
Coastguard teams from Ness, Bragar and Stornoway on the Isle of Lewis were called out.
The dog had fallen on to a ledge and the coastguard teams were able to rescue it. The Maritime and Coastguard Agency said the animal was uninjured.


Andy Warhol once famously said "good business is the best art".

At the time it sounded fey and facetious, but as was often the way with him, it turned out to be smart and prophetic.
He was outing a vulgar truth from the closet, which is that most artists like to make money, and the way they do it is by making art - it is their product, it is a commodity.
As we know, Warhol's ideas caught on - and not just in the art world.
They inspired a 16 year old called David Jones from Bromley: a young man fed up with his job in advertising who had a yearning for fame. What, he thought, if I turned myself into a product? What if I became a commodity and the fans my consumers?
After a couple of false starts, he launched his first brand called…David Bowie.
Some time later, in a BBC interview, he rationalised what had been instinctive: "I thought, well here I am. I'm a bit sort of mixed up creatively.
"I've got all sorts of things going on, that I'm doing on stage or whatever. I'm not quite sure if I'm a mime or a songwriter or a singer - or do I want to go back to painting again. Why am I doing these things anyway? And I realised it was because I wanted to be well known, basically.
"And that I wanted to be thought of as someone who was very much a trendy person, rather than a trend. I didn't want to be a trend, I wanted to be the instigator of new ideas. I wanted to turn people on to new ideas and new perspectives. And so I had to govern everything around that.
"So I pulled myself in, and decided to use the easiest medium to start off with - which was rock and roll - and to add bits and pieces to it over the years, so that by the end of it, I was my own medium. That's why I do it, to become a medium."
David Bowie is the Steve Jobs of rock, the Picasso of pop. He synthesises influences past and present, drops them into the Bowie Blender, and serves up something fresh and exciting. Jobs would come up with a new product, Picasso a new style; Bowie launches a new persona.
Take Ziggy Stardust for example. In his DNA you'll find Japanese Kabuki theatre, British rock and roll, and late 1960s dystopian sci-fi. Bowie turned pop art into post modernism, where superficiality and altered images were designed to question the certainty of past generations.
Here was a product wanted by British youth and by Young Americans. A pink-haired, cat-suit-wearing, androgynous-looking style leader - a new hero who dared a generation to be different. Or as those Apple ads would a quarter of a century later say, to think different.
While the Rolling Stones and Dylan were defined by their music and therefore to a certain extent trapped, Bowie was defined more as a character actor - a vaudevillian performer, which meant he was free to ring the ch…ch…changes whenever he wanted.
Here's what Bowie said about that in another BBC interview: "One painting isn't the painter's life. And often a painter will do a lot of paintings and he's only satisfied with a couple in his entire career, and that applies to me definitely.
"I'm only happy with a couple of albums. Occasionally I'll strike on something that's very good.  But you can't set out and do a painting and say 'this is it', but it is it. You just hope and try and if it doesn't work, you put it to one side and try another one."
To paraphrase his mentor, Andy Warhol, Bowie's best art has been good for business. For an avant-garde artist his estimated fortune of £100m is impressive, especially as he has stepped off the lucrative touring circuit for most of this century. But it could have been a lot more.
His early publishing agreements and tour arrangements were not the sophisticated financial deals made by someone with a Harvard MBA, but with an A-level in art from a tech college in South London.
And his venture into the world of high finance in the mid-1990s is considered by some to have been part of the 'securitisation' craze that led to today's global financial crisis.
The infamous Bowie Bonds of 1997 saw the worlds of rock and stock merge in a deal in which bonds were issued against Bowie's future income.
But for once the musician's grasp of the zeitgeist had momentarily loosened, and he failed see the negative impact digital downloads was going to have on music sales.
Author Paul Trynka, who wrote the Bowie biography Starman, thinks he knows what led to this loss of trend-spotting form.
"When he got to the point where he realised he didn't own his own music, I believe that inspired a full-blown mental breakdown," he says.
"Everyone talks about his cocaine period - that came at the same time that he realised that his manager, Tony Defries, owned all of his music. Here's a guy who'd made all these massive sacrifices to make music, and he doesn't own it all.
"That really bothered him. He didn't talk about it - and in a way, that in itself is significant. The desire to control his music is what led to the creation of Bowie bonds.
"Ultimately, those bonds were classed as junk. It's something that didn't seem to benefit many artists in the long run - and there are some people who speculated that the notion of issuing bonds kicked off the crash of 2008. So they worked for him, but not for many other people."
What has worked is David Bowie's comeback album The Next Day. Without subjecting himself to any interviews, or taking on an exhausting tour, it has garnered praise, headlines and now a number one spot in the charts - the first time Bowie has enjoyed pole position for 20 years.
And with it comes the launch of a new image; that of a nostalgic legendary rock star called David Bowie. It's a brand he has reinforced by making his own back catalogue the album's subject.
Hence, perhaps, the no interviews policy and a career retrospective at the V&A in which he did not participate: this new persona wants us all to focus on his past, not his present.
Clever stuff. Worthy of Andy Warhol himself.


Russia has announced it will now take part in Eurovision 2017 in Ukraine, appearing to end speculation of a boycott for political reasons.

Julia Samoilova is set to represent her country in Kiev in May with the song Flame is Burning.
However, her admission she performed in Crimea since it was annexed by Russia in 2014 may compromise her attendance.
Ukraine's SBU security service has blacklisted 140 Russian artists, although she is not on the list so far.
Samoilova, 27, has confirmed that she sang in Crimea in 2015.
Russia and Ukraine have been locked in political conflict since the annexation of the region three years ago.
An SBU spokeswoman, Olena Gitlyanska, wrote on Facebook it would now "study the question and take a balanced decision on her entry into Ukraine".
Kremlin spokesman Dmitry Peskov, speaking to Russian news agency TASS, denied that Samoilova's selection was a provocation by Russia.
He said: "Undoubtedly, we would like to avoid politicising the Eurovision contest.
"We believe it absolutely unacceptable as far as the development of this international contest is concerned."
Russia announced Samoilova as its 2017 entry on state TV on Sunday, just one day before the nomination deadline.
Russian MPs and musical artists had been among those urging a boycott of Eurovision over its perceived politicisation.
Ultra-conservative lawmaker Vitaly Milonov said that Russians would be "unwelcome guests in a country seized by fanatics".
Ukraine is hosting the competition after its singer Jamala caused an upset by winning in Sweden last year.
Her song, 1944, was about Joseph Stalin's mass deportation of the Crimean Tatars during World War Two.
In addition to the Crimea flashpoint, Ukraine accuses Moscow of arming separatist rebels in its eastern Donbas region, in a conflict that has claimed 10,000 lives since 2014.
Samoilova is due to perform in the second semi-final of the Eurovision Song Contest on 11 May in Kiev.
If she wins through she will take part in the final two days later.


Bury have signed defenders Taylor Moore, Reece Brown and Cameron Burgess.

Bristol City's Taylor, 19, is an England youth international and joins on loan until the end of the season.
Brown, 25, brother of Blackburn and former Manchester United defender Wes, spent the 2015-16 campaign on loan at the Shakers and was released by Sheffield United on Friday.
Fulham's Burgess is a 21-year-old centre-back or left-back who will stay for the rest of the season on loan.
He spent the first half of the season at Bury's League One rivals Oldham, making 31 appearances in all competitions.
Find all the latest football transfers on our dedicated page or visit our Premier League tracker here.


The trombonist in ska band The Specials has died at the age of 80, the group has announced.

Rico Rodriguez was a ska and reggae musician who played with the band on songs including the 1979 hit A Message to You Rudy.
The Specials announced his death in a tweet on Friday.
It said: "Our dear friend Rico passed away today. We offer out deepest condolences to his family. His legacy will go on forever. RIP dear Rico"
Rodriguez was born in Cuba and grew up in Jamaica, before moving to England in the 1960s, according to the Jamaica Observer.
As well as playing with The Specials, Rodriguez performed as a solo artist, recording albums including Man from Wareika, Blow Your Horn and Brixton Cat with his band Rico and the Rudies.
He worked with many different musicians and producers during a lengthy career, including Prince Buster, Karl Pitterson and Jools Holland in his Rhythm and Blues Orchestra.
He was made an MBE in 2007 for services to music.
Among those paying tribute has been Elvis Costello, who tweeted: What a moment it was to hear him play on "Rudy".


The Dons Trust, owners of AFC Wimbledon, have exchanged contracts with Chelsea for the sale of their Kingsmeadow stadium.

Chelsea want to use the ground for their youth and ladies' teams.
The deal will not be finalised until a number of conditions have been met, which include the Dons obtaining final planning permission for a new home.
Their plans to develop the greyhound stadium in Plough Lane are being scrutinised by the Mayor of London.
The decision by the Mayor's office followed Merton Borough Council approving Wimbledon's application for the greyhound stadium site.
Funds raised by the sale of Kingsmeadow to Chelsea will help towards the cost of their proposed new ground, which will have a capacity of 20,000.
AFC Wimbledon won promotion to League One via the play-offs last month and chief executive Erik Samuelson described the deal as "a major milestone".
He continued: "The proceeds of this deal are an essential part of the financing of the new stadium.
"The vision of a return to Merton, with all the community benefits it also brings, is now becoming very real."
The Dons have played at Kingsmeadow, which is also home to non-league side Kingstonian, since their formation in 2002.
They bought the ground from the K's in 2003 and as part of the sale to Chelsea will make a "substantial donation" to Kingstonian, allowing the Ryman League club to secure their future at another ground in or around Kingston.


Graham Norton is joining the presenting team for the BBC's 2016 Children in Need appeal following the death of long-time host Sir Terry Wogan.

Norton will co-host the show alongside Tess Daly, Rochelle and Marvin Humes, Greg James and Ade Adepitan.
Sir Terry fronted the broadcast every year from its first appearance in 1980. But he pulled out last year due to ill health and died two months later.
Chat show host Norton said it was a "huge privilege" to step in.
"This year we'd love to raise as much money as we possibly can in honour of the late Sir Terry Wogan," he said.
It is the first time Norton has appeared as a presenter on the appeal. Sir Terry was replaced by Dermot O'Leary for the 2015 show.
Strictly Come Dancing's Daly, who has previously presented the show alongside Sir Terry, said it was an "honour and pleasure" to work on Children in Need again and "make a real difference to the lives of disadvantaged children and young people right here in the UK".
Former Paralympian Ade Adepitan said: "When I was a kid, Children in Need had a fundraiser at Stoke Mandeville - I was playing wheelchair basketball there.
"They made me and all the other kids feel really special, the money raised helped to buy wheelchairs and gave my friends opportunities to play sport. It was also cool to think we might get on TV.
"So, to now be part of the presenting team is such an honour and so exciting. I can't wait - it's going to be an incredible night!"
Rochelle Humes said she would "never forget the amazing experience of presenting Children in Need with Sir Terry Wogan".
Her husband Marvin - who has previously appeared on the show with boy band JLS - said: "I've always been a huge fan of Children in Need and have great memories of watching the night of TV growing up and of course, performing with the JLS boys."
BBC Radio 1 DJ Greg James, also hosting for the first time, said: "It's an honour to be hosting Children in Need this year. It does such great work and makes a huge difference to the lives of disadvantaged children and young people across the UK."
The programme will be broadcast live on BBC One on 18 November from the BBC's Elstree Studios.
Director of BBC content Charlotte Moore said: "I know the nation will dig deep and do the late Sir Terry Wogan proud with their generous fundraising."
Follow us on Twitter @BBCNewsEnts, on Instagram, or if you have a story suggestion email entertainment.news@bbc.co.uk.


A campaign group has accused Google of using its deep pockets to fund academic research that backs its own agenda.

The Campaign for Accountability identified 329 research papers published between 2005 and 2017 on public policies that were indirectly or directly funded by the search giant.
Google hit back saying the group refused to name its own corporate funders.
It added that it valued researchers' "independence and integrity".
The Campaign for Accountability runs a series of projects, including one named The Google Transparency Project, which aims to expose the practices of the search giant.
CfA executive director Daniel Stevens said: "Google uses its immense wealth and power to attempt to influence policy makers at every level. At a minimum, regulators should be aware that the allegedly independent legal and academic work on which they rely has been brought to them by Google."
Mr Stevens continued: "What's good for Google is not necessarily good for the country.  Google-funded academics should disclose the source of their funding to ensure their work is evaluated in context and the government makes decisions that benefit all Americans, not just Google employees and stockholders."
The report found that a number of Google-funded studies were spiked during periods when the search giant's business model was under threat from regulators.
It said that they "often blur the line between academic research and paid advocacy".
In a statement, Google said in response: "Ever since Google was born out of Stanford's Computer Science department, we've maintained strong relations with universities and research institutes.
"We're happy to support academic researchers across computer science and policy topics, including copyright, free expression and surveillance, and to help amplify voices that support the principles of an open internet.
"And unlike our competitors who fund the Campaign for Accountability, we expect and require our grantees to disclose their funding."
In a detailed blogpost on the issue, the firm said that it was ironic that the CfA refused to name its own corporate funders.
"The one funder the world does know about is Oracle, which is running a well-documented lobbying campaign against us," it wrote.


Almost 130 bank branches have closed or will close in Wales over five years, figures obtained by the BBC have shown.

By the end of April this year, HSBC will have shut 51 of 131 branches, NatWest 52, Barclays 18 and Lloyds seven.
The banks said a drop in customers' use of local branches and a rise in online and mobile banking were the main reasons for the closures.
Former Welsh Secretary John Morris said action was needed.
Lord Morris has a family home in Llandysul, Ceredigion, where three banks have closed in four years.
He told BBC Radio Cymru: "I'm worried there's a lack of a plan at the moment.
"I think some kind of board has to be set up to look at the problem and make some recommendations which can be considered by the government."
Barclays' south Wales director, Mervyn Owen, said: "Banking patterns have changed. A lot of customers are going online now and using their phones. So, there's been a major decline in the use of local branches."


Macclesfield Town have signed winger Ryan Lloyd on a two-year contract following his release by Port Vale.

Lloyd, 23, came through Vale's academy but made just 18 appearances in all competitions and was released in May.
He spent the past two seasons on loan with Chester, scoring three goals in 63 National League appearances.
Lloyd is Macclesfield's fifth summer signing, following the arrivals of Courtney Richards, Scott Wilson, Shwan Jalal and Jared Hodgkiss.
Find all the latest football transfers on our dedicated page.


A controversial large TV screen in Newry may have to be removed after the High Court quashed the decision to approve planning permission.

The Catholic Church sought a judicial review after the screen was installed on Hill Street close to Newry Cathedral in December 2015.
The church said it was not consulted about the screen - and that was a breach of planning rules.
The Newry Reporter said that the court overturned planning approval on Monday.
The church was also awarded "reasonable costs" to cover its legal fees.
The screen had caused controversy when it was installed because of its close proximity to the cathedral.
Canon Francis Brown, from the cathedral, told the BBC that the church and parishioners were "delighted" with the court's decision.
"We had a number of issues with the screen," he said.
"For one, it was in front of the most historic building in the city. It was also distracting from Masses and services held in the cathedral.
"Another issue was that people driving down Hill Street were seeing flashes on the screen and it was distracting drivers."
He said the matter would now be "re-determined by the council" but that the church would oppose any move to keep the screen.
In a statement, the council said: "As the decision was only taken on Monday, council officials have not had the opportunity to table the decision at a council meeting.
"This will happen in the near future and a full statement will be issued."
The screen cost approximately ??120,000, with ??40,000 being provided by Newry, Mourne and Down District Council.


Two men have been taken to hospital after falling from a canoe into a river in the Highlands.

The men were reported to have gone into the River Garry just before 12:30.
One of them managed to get himself to shore, however, the other man was swept downstream. He was later rescued by a Royal Navy Search and Rescue helicopter.
Both men were taken to Raigmore Hospital in Inverness. Their conditions are not known.


Spain has granted citizenship to 4,302 people whose Jewish ancestors were expelled five centuries ago during the Inquisition.

A new law allowing dual citizenship for the descendants of those forced out in 1492, known as Sephardic Jews, was passed in June.
It came into force on Thursday.
Friday's move, however, follows a government decision to fast-track those who had applied for citizenship under a previous law.
The older law had required them to relinquish their other nationality.
Most of the group are from Morocco, Turkey and Venezuela, Spain's Federation of Jewish Communities said.
Justice Minister Rafael Catala said the decision had been made so they would not have to file another application.
Those seeking citizenship under the new law need to have their ancestry checked by Jewish authorities.
They must also demonstrate basic knowledge of Spanish, pass a test about Spanish culture and prove a modern connection to Spain.
Tens of thousands of Jews were expelled in 1492 during the Spanish Inquisition, which the government has called a "historic mistake".
Those who remained had to convert to Catholicism or risk being burnt at the stake.
The citizenship programme was first announced in 2012.


The outgoing editor of The Archers has revealed that Thomas Hardy's novel Tess of the D'Urbervilles partly inspired its contentious domestic abuse subplot.

The novel tells the sorry tale of a milkmaid who murders a man who, it is implied, rapes her in her sleep
Interviewed on BBC Radio 4's Broadcasting House on Sunday, Sean O'Connor said he was also influenced by the Victorian play Gaslight.
He said that Archers abuse victim Helen "should triumph".
"I do believe that soap opera has some sort of moral responsibility and I do believe that, in the end, Helen should triumph," he said.
Gaslight, by Patrick Hamilton, is about a man who psychologically abuses his wife by trying to convince her she's losing her mind.
Speaking of the influence of Tess of the D'Urbervilles, O'Connor said: "You see how this woman who starts off as a virginal milkmaid becomes a vengeful murderess.
"What you get, in every chapter, in infinitesimal ways, is finding out why she does it.
"That's what we've sort of done in the past 900 episodes of The Archers."
In an episode broadcast on 3 April, listeners heard Helen (Louiza Patikas) stab her husband Rob (Timothy Watson) in front of her young son Henry.
The storyline has been building up for the best part of two years, with Rob's behaviour escalating from controlling emotional abuse to physical harm.
O'Connor said the storyline had "at least another 20 years to go" but by the end of the story, "there will be some sort of redemptive conclusion".


A Canadian firm that wants to develop a mine near Omagh, County Tyrone, has said it has had to put its plans "on hold" and that jobs could be lost.

Galantas Gold says it could not get the necessary "anti-terrorism cover" from the PSNI for its blasting operations.
The police are required to provide the cover for the transportation and use of mining explosives in Northern Ireland.
The PSNI said there were "many competing demands" for the resources of the police.
Background - John Campbell, BBC News NI business editor
The PSNI normally escort explosives when being brought to a quarry or mine in Northern Ireland.
There will also be an explosives officer there during blasting. Their job is mainly about auditing the use of detonators - how many have been used, have the excess detonators been disposed off etc.
This is something that has been happening for 40-plus years.
But a typical quarry blast would only happen about twice a month.
In a gold mine, explosives use is much more intense - blasting happens three or four times a week. Hence the police are saying it is a resource issue for them.
According to Galantas, the PSNI said it could only provide anti-terrorism cover for a two-hour period, two days a week.
This would not be enough to sustain development or operation of the mine, said the company.
It is now threatening to sue the PSNI saying it may seek "substantial compensation for the costs of delays".
Roland Phelps, the chief executive, said: "The PSNI's decision is clearly a blow to any proposed mine development in Northern Ireland and negatively affects the livelihoods of our employees and their families."
PSNI Ch Supt Kevin Dunwoody said the police must prioritise demands "in a way that maximises the safety of the public and their officers and works to counter threats, to mitigate risk and to alleviate harm".
"Working with others to support their efforts for the development of enterprise and the economy is important to the PSNI," he added.
"It is, however, reasonable to expect a commercial venture to contribute all or part of the policing costs where it is legitimate and proportionate to do so."
Galantas have emphasised they were willing to enter into a "cost-recovery arrangement" with the PSNI but were told there was no manpower available to provide the cover.


London's benchmark share index opened lower, with banks and oil companies among the main fallers.

In early trade, the FTSE 100 was down 54.63 points, or 0.8%, at 6,786.12.
Shares in oil giants Royal Dutch Shell and BP were both down by about 1.5% as the price of oil remained under pressure ahead of a meeting of the Opec oil producers this week.
Oil prices had fallen 3% on Friday, and they slid again on Monday before recovering.
Opec is meeting on Wednesday, but it remains uncertain as to whether the group will agree cuts to oil output in order to rein in global oversupply.
Shares in Royal Bank of Scotland fell 1.7% while Barclays dropped 1.5%. The results of the latest bank stress tests will be published by the Bank of England on Wednesday.
In the FTSE 250, shares in JD Sports rose 3.3% after the retailer said it had bought the 58-store Go Outdoors chain for Â£112.3m.
On the currency markets, the pound rose 0.3% against the dollar to $1.2511, but fell 0.4% against the euro to â‚¬1.1728.


A police officer is to climb Mount Kilimanjaro in an attempt to raise awareness of female genital mutilation.

Det Ch Insp Leanne Pook also plans to help out at a rescue centre in Africa caring for girls saved from FGM and child marriage.
As part of her training Ms Pook, who is Avon and Somerset Police's lead on FGM, has climbed Snowdon twice in a day.
As part of the trip she will be tweeting pictures and video of her progress via @ASPEndFGM
Ms Pook said she would be visiting places where FGM is still practised to understand what barriers are still in place which prevent this "awful practice from being consigned to the past".
"We'll spend about a week climbing up and back down the mountain before volunteering at the centre for the next five days," she said.
"This centre is a haven for children who are orphaned or have been rescued from FGM and child marriage. This place doubtless saves the lives of some young girls and allows them to achieve their full potential. At the centre they're safe, receive an education and learn to be self-sufficient.


Communities have come together to celebrate the life of the murdered MP Jo Cox.

The 41-year-old was shot and stabbed in Birstall, in her Yorkshire constituency of Batley and Spen, on 16 June 2016.
To mark the first anniversary of her death her family and friends have urged people to hold events that celebrate her life.
The Great Get Together, involving picnics, street parties and concerts, runs across the weekend.
Organised by the Jo Cox Foundation, it aims to reinforce the message in Mrs Cox's maiden speech in the House of Commons that "we have more in common than that which divides us".
Mrs Cox's sister, Kim Leadbeater, said the events were "nothing to do with politics, nothing to do with religion".
"Nothing to do with anything other than getting together with people in your communities," she added.
"People are desperate for it - people want something that is about coming together and being positive."
The Labour MP's former constituency is the focus of a number of events.
Schoolchildren across the area participated in special assemblies and Upper Batley High School renamed its conference centre in honour of Mrs Cox.
The new centre was opened by Mrs Cox's parents Gordon and Jean Leadbeater. Mrs Leadbeater said she was delighted to take part in the ceremony.
"There was nothing Jo liked better than getting into the schools," said Mrs Leadbeater.
"She knew that this is where it all started, the grassroots. Start with the children and work up."
Mr Leadbeater added that, although the anniversary was difficult, "what keeps us going is the strength we are getting from people and we can feel the love".
People gathered for "a moment of reflection" close to the site of Ms Cox's murder in Birstall market place.
Children wrote messages on a memorial wall erected in the square.
More than 500 children sang in a choir on the village green in Heckmondwike.
Nationally more than 100,000 events have been planned between Friday and Sunday, the foundation said.
Mrs Cox's widower Brendan said he was "awed" by the numbers of people who planned to take part.