Dennis Thornton v. Flathead County, et al.
D. Montana · Jan 23, 2026
What happened in this matter?
The Court ordered the pro se plaintiff to file conventional hard-copy source documents for every legal citation in his filings after identifying that he used AI to generate fabricated case law, nonexistent citations, and misattributed quotes in his briefing.
- Why the court cared
- Fabricated: Case Law | Defendants identified 'Younger v. City of Seattle, 70 F.4th 1099, 1107 (9th Cir. 2023)' as a nonexistent Ninth Circuit citation; 70 F.4th 1099 corresponds to an unrelated Eighth Circuit case and no Ninth Circuit case with that title appears to exist. || Fabricated: Case Law | Thornton cited 'United States v. Craner, 652 F. App'x 560, 562 (9th Cir. 2016)'; the Court noted this citation appears incorrect/nonexistent as cited and may reflect a miscitation (perhaps meant 652 F.2d 23 (9th Cir. 1981)), which does not support Thornton's asserted proposition. || Fabricated: Case Law | Thornton cited 'United States v. Smith, 629 F.3d 1082, 1084 (9th Cir. 2011)'; the Court identified this citation as nonexistent in the form cited and treated it as a fabricated authority in Thornton's briefing. || False Quotes: Case Law | Thornton quoted language attributed to Odd v. Malone, 538 F.3d 202 (3d Cir. 2008); the Court found the quoted language is not in that opinion and the opinion was not authored by the judge Thornton referenced (misquoted/misattributed).
- Why it matters now
- This record documents a Pro Se Litigant filing issue in D. Montana, with the listed outcome: Order to file conventional hard-copy source documents for every cited authority.
Why this matter is tracked
In a civil rights action, the District Court for the District of Montana identified that the pro se plaintiff, Dennis Thornton, utilized artificial intelligence to generate false and misleading case citations and fabricated legal authority in his briefing. The Court noted that Thornton cited nonexistent Ninth Circuit cases, misattributed quotes, and cited cases that did not support his asserted legal propositions. While the Court acknowledged Thornton's pro se status, it emphasized his history of vexatious litigation and prior instances of falsifying authority. Consequently, the Court ordered Thornton to file conventional hard-copy source documents for every legal citation in his filings to ensure the authenticity and accuracy of the information presented to the Court, warning that failure to comply may result in further Rule 11 sanctions.
This record documents a Pro Se Litigant filing issue in D. Montana, with the listed outcome: Order to file conventional hard-copy source documents for every cited authority.
Record details
What the record establishes about AI use
The Court explicitly stated the plaintiff used AI to generate false citations.
Order on Defendants' motion to dismiss, with a specific directive regarding the plaintiff's use of fabricated legal authority.
Correction behavior is not separately verified in the current record.
Tracked discrepancy record
4 citation, quotation, or authority issues are recorded in the source dataset.
- Fabricated: Case Law | Defendants identified 'Younger v. City of Seattle, 70 F.4th 1099, 1107 (9th Cir. 2023)' as a nonexistent Ninth Circuit citation; 70 F.4th 1099 corresponds to an unrelated Eighth Circuit case and no Ninth Circuit case with that title appears to exist.
- Fabricated: Case Law | Thornton cited 'United States v. Craner, 652 F. App'x 560, 562 (9th Cir. 2016)'; the Court noted this citation appears incorrect/nonexistent as cited and may reflect a miscitation (perhaps meant 652 F.2d 23 (9th Cir. 1981)), which does not support Thornton's asserted proposition.
- Fabricated: Case Law | Thornton cited 'United States v. Smith, 629 F.3d 1082, 1084 (9th Cir. 2011)'; the Court identified this citation as nonexistent in the form cited and treated it as a fabricated authority in Thornton's briefing.
- False Quotes: Case Law | Thornton quoted language attributed to Odd v. Malone, 538 F.3d 202 (3d Cir. 2008); the Court found the quoted language is not in that opinion and the opinion was not authored by the judge Thornton referenced (misquoted/misattributed).
Questions this record answers
- What happened in Dennis Thornton v. Flathead County, et al.?
- The Court ordered the pro se plaintiff to file conventional hard-copy source documents for every legal citation in his filings after identifying that he used AI to generate fabricated case law, nonexistent citations, and misattributed quotes in his briefing.
- Why does Dennis Thornton v. Flathead County, et al. matter for legal AI risk?
- This record documents a Pro Se Litigant filing issue in D. Montana, with the listed outcome: Order to file conventional hard-copy source documents for every cited authority.
- What does the public record establish about Dennis Thornton v. Flathead County, et al.?
- Retained unchanged after audit: the existing summary is source-specific, non-placeholder, and supported by the recorded source link. Read the underlying source before relying on it for legal advice or a filing.
- Which source supports this Dennis Thornton v. Flathead County, et al. summary?
- The recorded source is Damien Charlotin case archive. It is classified as publisher document archive; review the linked material and subsequent docket history before relying on this summary.
Related matters
Related by court, jurisdiction, tool, or classified failure pattern. Similarity does not imply the same facts or outcome.