Datasets:
id string | doc_type string | jurisdiction string | title string | text string | source string | license string | retrieved_at timestamp[s] | citation string | court string | date timestamp[s] | extra dict |
|---|---|---|---|---|---|---|---|---|---|---|---|
2be1e83310421990 | opinion | ma | Pacella v. Metropolitan District Commission |
Cutter, J.
This is a petition under G. L. c. 29, § 63 (inserted by St. 1937, c. 157), by more than twenty-four taxable inhabitants to enjoin the metropolitan district commission (the commission) from awarding the contract hereinafter described and seeking further relief. The case was referred to a master... | cl-bulk://2026-06-30/opinions/2073280 | public-domain-edict-of-government | 2026-06-30T00:00:00 | ma-mass | 1959-06-04T00:00:00 | {
"cl_opinion_id": "2073280",
"cluster_id": "2073280",
"opinion_type": "010combined",
"text_kind": "html_with_citations",
"source_label": "courtlistener"
} | |
8e3c0f573286b10a | opinion | ma | Commonwealth v. Wood |
Hale, C.J.
The defendant appeals (G. L. c. 278, §§ 33A-33G) from his convictions on indictments charging him with rape (G. L. c. 265, § 22) and kidnapping (G. L. c. 265,
*456
§ 26).
1
He assigns as error (1) the judge’s charge to the jury on the meaning of reasonable doubt and... | cl-bulk://2026-06-30/opinions/2070102 | public-domain-edict-of-government | 2026-06-30T00:00:00 | ma-massappct | 1979-04-24T00:00:00 | {
"cl_opinion_id": "2070102",
"cluster_id": "2070102",
"opinion_type": "010combined",
"text_kind": "html_with_citations",
"source_label": "courtlistener"
} | |
6a3ba7909069f2a6 | opinion | ma | Stryker v. Kennard |
Spalding, J.
James H. Stryker, successor trustee under a declaration of trust executed by Isabella H. Adams, brought this petition for instructions in the Probate Court for Middlesex County.
The trust instrument, which is dated April 25, 1912, declares that Isabella H. Adams transferred certain sh... | cl-bulk://2026-06-30/opinions/2073556 | public-domain-edict-of-government | 2026-06-30T00:00:00 | ma-mass | 1959-06-09T00:00:00 | {
"cl_opinion_id": "2073556",
"cluster_id": "2073556",
"opinion_type": "010combined",
"text_kind": "html_with_citations",
"source_label": "courtlistener"
} | |
d7320ae01ea0e40d | opinion | ma | Taylor v. Lassell |
Keville, J.
The defendants (Lassells) appeal from a judgment entered in the Superior Court ordering that they grant to the plaintiffs (Taylors) and their successors in title by a confirmatory deed an easement “over” a portion of their land upon which a part of the Taylors’ septic tank system encroaches t... | cl-bulk://2026-06-30/opinions/2073791 | public-domain-edict-of-government | 2026-06-30T00:00:00 | ma-massappct | 1976-08-24T00:00:00 | {
"cl_opinion_id": "2073791",
"cluster_id": "2073791",
"opinion_type": "010combined",
"text_kind": "html_with_citations",
"source_label": "courtlistener"
} | |
834b3d8c2445dd3a | opinion | ma | Todd Main v. Johanna Main. | NOTICE: Summary decisions issued by the Appeals Court pursuant to M.A.C. Rule
23.0, as appearing in 97 Mass. App. Ct. 1017 (2020) (formerly known as rule 1:28,
as amended by 73 Mass. App. Ct. 1001 [2009]), are primarily directed to the parties
and, therefore, may not fully address the facts of the case or the panel's
d... | cl-bulk://2026-06-30/opinions/11209341 | public-domain-edict-of-government | 2026-06-30T00:00:00 | ma-massappct | 2025-11-26T00:00:00 | {
"cl_opinion_id": "11209341",
"cluster_id": "10742756",
"opinion_type": "010combined",
"text_kind": "plain_text",
"source_label": "courtlistener"
} | |
c2901ed64fa4258f | opinion | ma | Commonwealth v. Palacios | NOTICE: All slip opinions and orders are subject to formal
revision and are superseded by the advance sheets and bound
volumes of the Official Reports. If you find a typographical
error or other formal error, please notify the Reporter of
Decisions, Supreme Judicial Court, John Adams Courthouse, 1
Pemberton Square, Sui... | cl-bulk://2026-06-30/opinions/4105541 | public-domain-edict-of-government | 2026-06-30T00:00:00 | ma-massappct | 2016-12-08T00:00:00 | {
"cl_opinion_id": "4105541",
"cluster_id": "4328280",
"opinion_type": "010combined",
"text_kind": "plain_text",
"source_label": "courtlistener"
} | |
d04e0fb6a30e01e8 | opinion | ma | EVOLVING PROPERTIES LLC v. LIANN DIMARE & Others; KIM MULLIGAN, Defendant-In-Counterclaim. | NOTICE: Summary decisions issued by the Appeals Court pursuant to M.A.C. Rule
23.0, as appearing in 97 Mass. App. Ct. 1017 (2020) (formerly known as rule 1:28,
as amended by 73 Mass. App. Ct. 1001 [2009]), are primarily directed to the parties
and, therefore, may not fully address the facts of the case or the panel's
d... | cl-bulk://2026-06-30/opinions/11209345 | public-domain-edict-of-government | 2026-06-30T00:00:00 | ma-massappct | 2025-11-26T00:00:00 | {
"cl_opinion_id": "11209345",
"cluster_id": "10742760",
"opinion_type": "010combined",
"text_kind": "plain_text",
"source_label": "courtlistener"
} | |
b4d6b9209c8da449 | opinion | ma | Commonwealth v. Moynihan |
376 Mass. 468 (1978)
381 N.E.2d 575
COMMONWEALTH
vs.
JAMES J. MOYNIHAN.
Supreme Judicial Court of Massachusetts, Suffolk.
March 6, 1978.
September 26, 1978.
Present: HENNESSEY, C.J., QUIRICO, BRAUCHER, KAPLAN, WILKINS, LIACOS, & ABRAMS, JJ.
Maurice F. Ford for the defendant.
... | cl-bulk://2026-06-30/opinions/2006420 | public-domain-edict-of-government | 2026-06-30T00:00:00 | ma-mass | 1978-09-26T00:00:00 | {
"cl_opinion_id": "2006420",
"cluster_id": "2006420",
"opinion_type": "010combined",
"text_kind": "html_with_citations",
"source_label": "courtlistener"
} | |
9a64d2b9ac8f128b | opinion | ma | Attorney General v. Commissioner of Insurance | " \n \n \n Kaplan, J.\n \n \n These cases question the legality of indus-trywide automobile insur(...TRUNCATED) | cl-bulk://2026-06-30/opinions/2073828 | public-domain-edict-of-government | 2026-06-30T00:00:00 | ma-mass | 1976-08-16T00:00:00 | {"cl_opinion_id":"2073828","cluster_id":"2073828","opinion_type":"010combined","text_kind":"html_wit(...TRUNCATED) | |
ea5c10a451973651 | opinion | ma | Commonwealth v. Stirlacci | "NOTICE: All slip opinions and orders are subject to formal\nrevision and are superseded by the adva(...TRUNCATED) | cl-bulk://2026-06-30/opinions/4470633 | public-domain-edict-of-government | 2026-06-30T00:00:00 | ma-mass | 2020-01-08T00:00:00 | {"cl_opinion_id":"4470633","cluster_id":"4693341","opinion_type":"010combined","text_kind":"plain_te(...TRUNCATED) |
Massachusetts Case Law
Source & credit — Free Law Project / CourtListener
Every opinion in this dataset comes from the Free Law Project / CourtListener bulk export of 2026-06-30 (10,798,347 opinions). CourtListener gathered, cleaned, deduplicated and published that record; Free Law Project — the 501(c)(3) non-profit behind it, building free public access to American law since 2010 — pays for it. We sliced and reformatted; they did the hard part. Go to the source: https://www.courtlistener.com.
Free Law Project is a non-profit, and it is worth supporting: https://free.law/donate/. If this data is useful to you, credit Free Law Project and CourtListener too, and consider going straight to the source: CourtListener runs its own API and MCP server.
Full text of 90,879 Massachusetts appellate opinion documents from the public record, sliced from the Free Law Project / CourtListener bulk export of 2026-06-30.
Court coverage (3 court ids, explicit allowlist — never prefix-matched):
mass, massappct, massdistctapp.
Lead opinions and separate opinions; documents under 1 characters excluded.
Slice sha256 96a07d0073fcb26bfc77b26d7abe0b8c67680c7adc23b0b0664c08297a97e9dc (also in slice.manifest.json).
Composition
Measured on this exact slice: 77,374 documents (85.1%) carry 2,000+
characters of text, 11,861 (13.1%) carry 200-1,999, and 1,644
(1.8%) are under 200 characters. The short ones are real records, not errors: certiorari
denials, one-line orders, and judgment entries. They are kept deliberately (min_chars = 1)
so this is the complete public record rather than a filtered subset. Filter on len(text) if you want
only substantive opinions.
Format
Rows follow docketx record v1 (one opinion per line): id, doc_type, jurisdiction, title,
text, source, license, retrieved_at, plus citation, court, date, and extra
(CourtListener opinion/cluster ids, opinion type). The same format is used across every
docketx dataset.
Provenance and license
Judicial opinions are edicts of government: uncopyrightable works of the public domain (Banks v. Manchester, 128 U.S. 244 (1888); Georgia v. Public.Resource.Org, 590 U.S. 255 (2020)). This packaging is released under CC0 1.0. Source: CourtListener bulk export (2026-06-30), Free Law Project — https://free.law. This dataset redistributes public-domain court text; it adds no annotation and asserts no rights.
Load it
from datasets import load_dataset
ds = load_dataset("docketx/us-caselaw-ma")
Part of the DocketRouter legal corpora: https://huggingface.co/docketx
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