Carey v. Breakell
U.S. District Court, District of Utah · D. Utah · Utah bar guidance
Conduct
Here, plaintiff's opposition cited two Utah cases the court could not find on Westlaw as cited and misdated a Tenth Circuit decision.
Consequence
No sanction. The court said the citations suggest improper AI use may have occurred and left the issue to the Arizona judge when it transferred the case.
Lesson
Here a court flagged suspected AI citations in its order and passed them to the transferee court, so the concern followed the case to a new judge.
Verified September 30, 2026
- Citation
- Carey v. Breakell, No. 4:25-cv-00108-AMA-PK, Memorandum Decision & Order Granting Defendants' Motion to Dismiss for Improper Venue or, Alternatively, to Transfer to the District of Arizona & Denying Plaintiff's Motion to Allow Sur-Reply (D. Utah July 30, 2026) (McIff Allen, J.), ECF No. 26
- Decided
- July 30, 2026
Summary
Kristen Carey sued National Park Service Ranger Danielle Breakell, three other individual defendants, the Department of the Interior, and the United States over a traffic stop that began in Glen Canyon National Recreation Area in Utah and ended in an arrest and search after the vehicles crossed into Arizona. The defendants moved to dismiss for improper venue or to transfer the case to the District of Arizona. In an order on that motion, Judge Ann Marie McIff Allen called attention to "certain concerns" about the Opposition that plaintiff's counsel filed on March 10, 2026 (ECF No. 20). The court "located a number of case citations suggesting that the improper use of artificial intelligence may have occurred here." As examples, the Opposition cited "Larsen v. Davis Cnty. Sch. Dist., 2017 UT App 27, ¶¶ 14–16, 392 P.3d 1008 (Utah Ct. App. 2017)" and "Dale v. Bennett, 921 P.2d 466, 469 (Utah 1996)," and "the Court has been unable to locate these cases as cited on Westlaw." Later, the court noted that the case the Opposition cited for pendent venue, Huff v. Reeves, 996 F.3d 1082 (10th Cir. 2021), "does not address venue, let alone pendent venue," and was miscited as issued in 2022. The court quoted another decision that citations to non-existent cases "undermine the integrity of court filings."
- AI tool:
- Suspected, not found: the court located citations "suggesting that the improper use of artificial intelligence may have occurred" and left the issue to the transferee judge; no tool is named and counsel's explanation, if any, is not recorded
How did the court address the AI-related conduct?
The court stated that it "does not take suggestions of the improper use of artificial intelligence lightly," but, because it was transferring the action, it would "leave this issue to be handled according to the discretion of the receiving judge," and said the issue did not affect its ruling. It imposed no sanction, issued no order to show cause, and made no referral. On the motions, the court denied the plaintiff's motion to file a sur-reply, held that the Federal Tort Claims Act venue provision did not permit the FTCA claims (battery and negligent policies or procedures, premised on a search that occurred in Arizona) to proceed in Utah, declined to exercise pendent venue, granted the defendants' motion, and directed the clerk to transfer the entire action to the United States District Court for the District of Arizona in the interest of justice rather than dismiss it.
Why does Carey v. Breakell matter for law firms using AI?
Carey is a venue ruling in a suit arising from a National Park Service traffic stop that started in Utah and ended in Arizona. Before reaching the venue question, Judge McIff Allen addressed the plaintiff’s Opposition, which cited two authorities (styled as a 2017 Utah Court of Appeals decision and a 1996 Utah Supreme Court decision) that the court was “unable to locate […] as cited on Westlaw.” The court said these citations were among “a number of case citations suggesting that the improper use of artificial intelligence may have occurred here,” and quoted other courts’ statements that citing non-existent cases undermines the integrity of filings and is “an abuse of the adversary system.”
The court made no finding. It stated that it “does not take suggestions of the improper use of artificial intelligence lightly,” but because the case was going to the District of Arizona, it left the issue “to be handled according to the discretion of the receiving judge” and made clear it had no bearing on the venue ruling. The order therefore records a suspicion and passes it along; it neither sanctions counsel nor orders an explanation.
The procedural choice matters for firms. A transfer, dismissal, or other threshold ruling does not necessarily close out a citation problem: here the transferring judge wrote the concern into the order that accompanies the case to its new court. Firms documenting compliance may wish to consider that an unresolved citation concern in one court’s order can become the first thing a new judge reads about counsel’s filings.
Implications for your firm
Operational steps a firm reading this case may wish to consider documenting. Strategic and rule-application calls belong to your firm's attorneys.
- Verify citations in an opposition even when the motion turns on a threshold issue such as venue; here the court raised the citation concerns before reaching the venue question.
- Consider that a transferring court may put citation concerns in its order and leave them to the receiving judge, so they travel with the case rather than end with the transfer.
- Review whether each cited case addresses the proposition and carries the right date; the court separately noted that a real Tenth Circuit decision cited for pendent venue does not address venue and was cited with the wrong year.
Sources
Primary sources
- The court did not find that the Larsen and Dale citations are fabricated or AI-generated: it stated only that it could not locate them 'as cited on Westlaw' and that the citations 'suggest[]' improper AI use 'may have occurred.' Whether they are fabricated, or real cases cited incorrectly, is not decided in this order.
- Transferee proceedings: the case was docketed in the District of Arizona as No. 3:26-cv-08191 on August 13, 2026 (CourtListener RECAP search, checked 2026-09-30, which lists the transferee judge as Steven Paul Logan). The RECAP search returned eight docket entries; three (ECF Nos. 26-28, the transfer documents, through August 13, 2026) were read, and later entries, including any action on the citations, could not be read.
- Plaintiff's counsel is not named in the order.