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AI Legal Sanction Case Database
The AI Legal Sanction Case Database is the authoritative, continuously-updated, free index of publicly reported cases where a US or foreign court sanctioned, warned, or issued an order to show cause over AI-hallucinated citations in a legal filing. According to Citation Safe’s public sanctions database, courts have addressed AI-citation problems in 1000 reported cases tracked here as of today, spanning 2023–2026. New cases are ingested daily.
- Cases tracked
- 1,897
- Courts covered
- 393
- Cases with a reported penalty
- 348
- USD-denominated penalties
- $1,290,986
- across 191 USD cases — other currencies not converted
This is the structured dataset: every row here is a live, queryable record — sortable and filterable by jurisdiction, AI tool, judge, and year, with results pulled fresh on every request. Download the full dataset as CSV. For curated write-ups of the highest-profile entries — case background, why each sanction happened, what to take from it — see the AI Hallucination Sanctions Tracker, our editorial companion to this database.
1,897 cases match these filters · page 7 of 38
| Case | Court | Jurisdiction | Judge | Decided | AI tool | Outcome | Penalty | Source |
|---|---|---|---|---|---|---|---|---|
| in re: Nasser | E.D. Michigan (Bankruptcy) | USA | — | 2025-08-15 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| JNE24 v Minister for Immigration and Citizenship | Federal Circuit and Family Court | Australia | — | 2025-08-15 | Claude AI, Microsoft Copilot | Referral to the Bar; Personal costs order against lawyer (who reimbursed his client) | 8371 AUD | Case summary (Charlotin AI Hallucination Cases DB) |
| Kuzniar v General Dental Council | Employment Tribunal | UK | — | 2025-08-15 | ChatGPT | Tribunal declined to award costs | None reported | Source (naturalandartificiallaw.com) |
| Maxwell v. WestJet Airlines Ltd. | Civil Resolution Tribunal | Canada | — | 2025-08-15 | ChatGPT | Argument given no weight | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Yashcheshen v. Saskatchewan Government Insurance | KB Saskatchewan | Canada | — | 2025-08-15 | Implied | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| In re Sonja Helvig DeRosa-Grund | S.D. Texas (Bankruptcy) | USA | — | 2025-08-18 | Unidentified | Case dismissed with prejudice for one year | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| n. 5392928-50.2025.8.09.0051 | TJ Goiás | Brazil | — | 2025-08-18 | Implied | Monetary Fine; Bar Referral | 1 BRL | Case summary (Charlotin AI Hallucination Cases DB) |
| Wang v Moutidis | County Court of Victoria | Australia | — | 2025-08-18 | Gen AI | Arguments disregarded | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| WCAT Decision A2501051 (Hilary Thomson) | BC Workers' Compensation Appeal Tribunal | Canada | — | 2025-08-18 | Implied | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Williams v. Kirch | CA Indiana | USA | — | 2025-08-18 | Implied | Admonishment | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| XH v Canada Employment Insurance Commission | Social Security Tribunal | Canada | — | 2025-08-18 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Clark v. JPMorgan Chase Bank, N.A. | E.D. Michigan | USA | — | 2025-08-19 | Implied | Plaintiff's motion denied as frivolous; reply and sur-reply struck; plaintiff ordered to show cause | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Garces v. Hernandez | Fifth Circuit CA | USA | — | 2025-08-19 | Implied | Admonishment and Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| JML Rose Pty Ltd v Jorgensen (No 3) | Federal Court of Australia | Australia | — | 2025-08-19 | Unidentified | N/A | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Lahti v. Consensys Software Inc. | S.D. Ohio | USA | — | 2025-08-19 | Implied | Submission Stricken | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| In re R.L. | CA Illinois | USA | — | 2025-08-20 | Implied | No additional sanctions (given sanctions for Counsel in other cases) | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| CYFSA Decision 32 | ON IPC | Canada | — | 2025-08-21 | Unidentified | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Chenco v. Do-Fluoride | D. Idaho | USA | — | 2025-08-22 | Implied | Court denied defendant's motion for leave to file a surreply, admonished counsel for submitting non-existent quotations, and granted plaintiff's motion to remand. | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Fernando Betancourt Gómez v. Colegio de Profesionales | Puerto Rico | USA | — | 2025-08-22 | Implied | Trial court imposed a monetary sanction of $1,000 on the lawyers for causing unjustified delay; referred the lawyers to the Puerto Rico Supreme Court for disciplinary evaluation; judge inhibited from cases involving those lawyers and case to be reassigned. | 1000 USD | Case summary (Charlotin AI Hallucination Cases DB) |
| Giacomino y Otros v. Montserrat y Otros | Rosario CA | Argentina | — | 2025-08-22 | Unidentified | Referral of the issue to the Bar | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| In re Mascio | D. Colorado (Bankruptcy) | USA | — | 2025-08-22 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| 3 ORbs 164/25 | KG Berlin | Germany | — | 2025-08-25 | Implied | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Babbar v. Tarion Warranty Corporation | LAT Ontario | Canada | — | 2025-08-25 | Implied | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| MacEachern-Flatt v. University Health Network | HRT Ontario | Canada | — | 2025-08-25 | Implied | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Chapter Kris Jackson v. BOK Financial Corporation, et al. (2) | N.D. Oklahoma | USA | — | 2025-08-26 | Implied | Show Cause Order | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Helgen Industries | GAO | USA | — | 2025-08-26 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Orano Mining v. Niger (2) | ICSID Tribunal | International Arbitration | — | 2025-08-26 | Implied (by me) | Arguments ignored | None reported | No source on file |
| In re Richburg | D. South Carolina (Bankruptcy) | USA | — | 2025-08-27 | Microsoft CoPilot | 3 hours of CLE to be proven | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Roman v. County of Los Angeles | California SC | USA | — | 2025-08-27 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Takefman v. The Pickleball Club, LLC | CA Florida (3d) | USA | — | 2025-08-27 | Implied | Order to show cause | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| The Boys of Rockanje v. Dwaard | Rotterdam D. | Netherlands | — | 2025-08-27 | Implied | — | None reported | Source (cyberlawyer.nl) |
| United States v. Michael Shane DeBaere (1) | W.D. Virginia | USA | — | 2025-08-27 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Butler and National Disability Insurance Agency | Administrative Review Tribunal | Australia | — | 2025-08-28 | Unidentified | Tribunal criticised the reliability of AI-assisted expert reports and gave them reduced weight | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Case No. 2025구합53 | D. Incheon, Administrative | South Korea | — | 2025-08-28 | Implied | — | None reported | Source (lbox.kr) |
| Lee v. R&R Home Care, Inc. | E.D. Louisiana | USA | — | 2025-08-28 | Google Gemini | Monetary sanction; referral | 1000 USD | Case summary (Charlotin AI Hallucination Cases DB) |
| Lonnie Allbaugh v. University of Scranton | M.D. Pennsylvania | USA | — | 2025-08-28 | Unidentified | Monetary sanction; complaint dismissed without prejudice; leave to amend granted. | 1000 USD | Case summary (Charlotin AI Hallucination Cases DB) |
| Multiphone Latin America v. Millicom International Cellular | S.D. Florida | USA | — | 2025-08-28 | Implied | Referral to District Ad Hoc Committee and the Florida Bar for investigation | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Myeesha Parker v. Costco Wholesale Corp. | W.D. Washington | USA | — | 2025-08-28 | Implied | Fine, Adverse Costs Order, Bar Referral | 6200 USD | Source (reason.com) |
| Myers v. Tarion Warranty Corporation | Ontario | Canada | — | 2025-08-28 | Implied | Arguments ignored | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Thackston v. Driscoll | W.D. Texas | USA | — | 2025-08-28 | Implied | Magistrate Judge recommended Rule 11 sanctions | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| USA v. Sethi | E.D. Texas | USA | — | 2025-08-28 | Implied | Court denied defendant's motions; sentencing ordered to proceed as scheduled; no professional sanctions imposed. | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Alana Kotler v Ontario Secondary School Teachers’ Federation | Ontario Labour Relations Board | Canada | — | 2025-08-29 | Implied | Arguments ignored | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Clerk of the Ct. v. Rangel | Florida CA | USA | — | 2025-08-29 | Implied | Bar referral | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Cunningham v healthAlliance NZ Limited | Employment Court | New Zealand | — | 2025-08-29 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Gribble v Essential Energy | NSW D.C. | Australia | — | 2025-08-29 | Unidentified | Plaintiff ordered to exclude all Gen AI material | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| IBS Government Services, Inc. | GAO | USA | — | 2025-08-29 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Lothamer Tax Resolution, Inc. v. Paul Kimmel (1) | W.D. Michigan | USA | — | 2025-08-29 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Stewart v Good Shepherd | Victoria CA | Australia | — | 2025-08-29 | Implied | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Givati et al. v. Peri | Magistrate's Court Jaffa | Israel | — | 2025-08-31 | Implied | Corrections to filings ordered | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Backhoe Center Ltd. v. Abu Gwaid | Beersheba Magistrate's Court | Israel | — | 2025-09-01 | Implied | Monetary penalty | 7500 ILS | Case summary (Charlotin AI Hallucination Cases DB) |
This database aggregates publicly reported court sanctions and orders over AI-hallucinated citations. It is informational only, not legal advice, and not a complete record of every such case nationwide — see our free citation checker to verify your own filings before this happens to you.