Vernieri v. Dyno Nobel Americas

What sanction did the court impose?

Report and Recommendation issued recommending the personal-jurisdiction motion be granted. No formal sanction imposed for AI conduct. The court explicitly cautioned that "outright dismissal without a merits ruling is an appropriate sanction when the misuse of generative AI tools leads to fabricated case citations and clear misrepresentations of law," citing Moore v. City of Del City, 2025 U.S. App. LEXIS 31411, at *8 (10th Cir. 2025), and notified the plaintiff that "continued misconduct consistent with misuse of generative AI tools may result in dismissal of the action and any other appropriate sanctions." On March 31, 2026, District Judge Dale A. Kimball adopted the R&R (ECF No. 68), dismissing the Australian parent and Dyno Nobel Americas as parties.

Why does Vernieri v. Dyno Nobel Americas matter for law firms using AI?

Vernieri v. Dyno Nobel Americas is the second of two Magistrate Judge Dustin B. Pead orders within three weeks of each other addressing pro se litigant AI use in the District of Utah. The first, Lee v. Capital One Bank USA, N.A. (Feb. 24, 2026), used a closing section of a Report and Recommendation to admonish the pro se plaintiff in narrative form, drawing on the Seventh Circuit’s pro-se AI guidance and on prior intra-Circuit cases (Lexos Media). Vernieri takes a different procedural shape: the AI mention is a single, dense footnote (footnote 31) in a Report and Recommendation that is otherwise focused on Australian-parent personal jurisdiction. The footnote does three things in a small space. First, it identifies that the plaintiff “appears to have cited non-existent cases generated by AI and referred to as ‘AI hallucinations’,” with the specific identification incorporated by reference to the defense’s reply (ECF No. 62, footnote 1). Second, it formalizes the term by quoting Wadsworth v. Walmart Inc. (D. Wyo. 2025) for the definition of a hallucination as “fake sources of information” generated by an AI database. Third, and most importantly for partners reading the database, it invokes the Tenth Circuit’s recent Moore v. City of Del City (2025) for the proposition that “outright dismissal without a merits ruling is an appropriate sanction when the misuse of generative AI tools leads to fabricated case citations and clear misrepresentations of law,” and warns the plaintiff that continued AI misconduct could result in dismissal. The R&R was adopted by District Judge Dale A. Kimball on March 31, 2026 (ECF No. 68), dismissing the foreign parent. Cross-reference: Lee v. Capital One Bank USA, N.A. (D. Utah Feb. 24, 2026) (Pead, Mag. J.); Harris v. Washington County (D. Utah Mar. 24, 2026) (Kohler, Mag. J.).