Datasets:
id stringlengths 16 16 | doc_type stringclasses 1
value | jurisdiction stringclasses 1
value | title stringlengths 5 169 | text stringlengths 2 888k | source stringlengths 36 38 | license stringclasses 1
value | retrieved_at timestamp[s]date 2026-06-30 00:00:00 2026-06-30 00:00:00 | citation stringclasses 1
value | court stringclasses 1
value | date timestamp[s]date 1868-12-15 00:00:00 2026-06-23 00:00:00 | extra dict |
|---|---|---|---|---|---|---|---|---|---|---|---|
771e835e29837771 | opinion | mt | State v. Keys | NO. 92-232
IN THE SUPREME COURT OF THE STATE OF MONTANA
1993
STATE OF MONTANA,
Plaintiff and Respondent,
v.
MILTON LEE KEYS,
Defendant ... | cl-bulk://2026-06-30/opinions/882925 | public-domain-edict-of-government | 2026-06-30T00:00:00 | mt-mont | 1993-05-18T00:00:00 | {
"cl_opinion_id": "882925",
"cluster_id": "882925",
"opinion_type": "010combined",
"text_kind": "plain_text",
"source_label": "courtlistener"
} | |
7a490de0f9e9b06d | opinion | mt | In the Matter of Proposed Rules For | March 1 2011
IN THE SUPREME COURT OF THE STATE OF MONTANA
No. AF 10-0212
______________
IN RE THE ADOPTION OF RULES FOR THE ... | cl-bulk://2026-06-30/opinions/889896 | public-domain-edict-of-government | 2026-06-30T00:00:00 | mt-mont | 2011-03-01T00:00:00 | {
"cl_opinion_id": "889896",
"cluster_id": "889896",
"opinion_type": "010combined",
"text_kind": "plain_text",
"source_label": "courtlistener"
} | |
7ce680672bb8568e | opinion | mt | Satterlee v. Lumbermen's Mutual Casualty Co. | NO. 96-102
IN THE SUPREME COURT OF THE STATE OF MONTANA
1996
CATHERINE E. SATTERLEE,
LUMBERMEN'S MUTUAL CASUALTY COMPANY, i,// i j /,j ~~~~~~$~~
BUTTREY FOOD AND DRUG,
... | cl-bulk://2026-06-30/opinions/883828 | public-domain-edict-of-government | 2026-06-30T00:00:00 | mt-mont | 1996-12-10T00:00:00 | {
"cl_opinion_id": "883828",
"cluster_id": "883828",
"opinion_type": "010combined",
"text_kind": "plain_text",
"source_label": "courtlistener"
} | |
3695e6bd3da1c025 | opinion | mt | State Ex Rel. Mazurek v. District Court of Montana Fourth Judicial District | NO. 95-577
IN THE SUPREME COURT OF THE STATE OF MONTANA
1996
STATE OF MONTANA, ex rel.
JOSEPH P. MAZUREK, ATTORNEY GENERAL,
Relator,
JUL25 1996 j
DISTRICT COURT OF TH... | cl-bulk://2026-06-30/opinions/883959 | public-domain-edict-of-government | 2026-06-30T00:00:00 | mt-mont | 1996-07-25T00:00:00 | {
"cl_opinion_id": "883959",
"cluster_id": "883959",
"opinion_type": "010combined",
"text_kind": "plain_text",
"source_label": "courtlistener"
} | |
3b927c742573ffa2 | opinion | mt | Bird v. Hiller | NO. 94-450
IN THE SUPREME COURT OF THE STATE OF MONTANA
1995
PHILIP A. BIRD and
CARA BIRD,
Plaintiffs and Appellants,
M.B. "BUCK" HILLER,
Defendant and Respondent.
APPEAL FROM: District Court of the First Judicial D... | cl-bulk://2026-06-30/opinions/883719 | public-domain-edict-of-government | 2026-06-30T00:00:00 | mt-mont | 1995-04-11T00:00:00 | {
"cl_opinion_id": "883719",
"cluster_id": "883719",
"opinion_type": "010combined",
"text_kind": "plain_text",
"source_label": "courtlistener"
} | |
f82b0b609c4eb5a8 | opinion | mt | Lewis & Clark Co. v. 1st Judicial District | r.
09/21/2021
IN THE SUPREME COURT OF THE STATE OF MONTANA Case Number: OP 21-0443
OP 21-0443
... | cl-bulk://2026-06-30/opinions/4912765 | public-domain-edict-of-government | 2026-06-30T00:00:00 | mt-mont | 2021-09-21T00:00:00 | {
"cl_opinion_id": "4912765",
"cluster_id": "5095380",
"opinion_type": "010combined",
"text_kind": "plain_text",
"source_label": "courtlistener"
} | |
e21ee3efb00578f0 | opinion | mt | State v. K. Baylor | 7 ri
LL.1 ti 09/21/2021
IN THE SUPREME COURT OF THE STATE OF MONTANA Case Number: DA 20-0378
DA... | cl-bulk://2026-06-30/opinions/4912755 | public-domain-edict-of-government | 2026-06-30T00:00:00 | mt-mont | 2021-09-21T00:00:00 | {
"cl_opinion_id": "4912755",
"cluster_id": "5095370",
"opinion_type": "010combined",
"text_kind": "plain_text",
"source_label": "courtlistener"
} | |
3ff2182ba649922e | opinion | mt | I. Elliot v. Womack & C. Elliot | 1'17 F H
I MAL 09/21/2021
IN THE SUPREME COURT OF THE STATE OF MONTANA Case Number: OP 21-0473
OP 21-0473
... | cl-bulk://2026-06-30/opinions/4912766 | public-domain-edict-of-government | 2026-06-30T00:00:00 | mt-mont | 2021-09-21T00:00:00 | {
"cl_opinion_id": "4912766",
"cluster_id": "5095381",
"opinion_type": "010combined",
"text_kind": "plain_text",
"source_label": "courtlistener"
} | |
f687520706c04ea5 | opinion | mt | Bartell v. Salmonsen | " 09/2(...TRUNCATED) | cl-bulk://2026-06-30/opinions/4912768 | public-domain-edict-of-government | 2026-06-30T00:00:00 | mt-mont | 2021-09-21T00:00:00 | {"cl_opinion_id":"4912768","cluster_id":"5095383","opinion_type":"010combined","text_kind":"plain_te(...TRUNCATED) | |
88aeb54e4d98df34 | opinion | mt | State v. Shreves | " No. 03-670\n\n IN THE SUPREME COURT OF THE(...TRUNCATED) | cl-bulk://2026-06-30/opinions/886888 | public-domain-edict-of-government | 2026-06-30T00:00:00 | mt-mont | 2004-06-22T00:00:00 | {"cl_opinion_id":"886888","cluster_id":"886888","opinion_type":"010combined","text_kind":"plain_text(...TRUNCATED) |
Montana Case Law
Code & tools: github.com/docketx — legal-scrambler pseudonymises a case file on your own hardware before a frontier model sees it; claude-for-legal is the Claude Code plugin (
docketx-open-law) that loads these datasets and checks citations against them.
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 64,117 Montana appellate opinion documents from the public record, sliced from the Free Law Project / CourtListener bulk export of 2026-06-30.
Court coverage (1 court ids, explicit allowlist — never prefix-matched):
mont.
Lead opinions and separate opinions; documents under 1 characters excluded.
Slice sha256 2d2b5d9229ce2416aad319536e3e60918a8de534d0cc78ae986aff4d7d217135 (also in slice.manifest.json).
Composition
Measured on this exact slice: 39,742 documents (62.0%) carry 2,000+
characters of text, 21,366 (33.3%) carry 200-1,999, and 3,009
(4.7%) 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-mt")
Part of the DocketRouter legal corpora: https://huggingface.co/docketx
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