Incident Tracker / United States (federal)
Dillon v. Stephenson
·United States District Court for the Western District of Oklahoma·US-FEDWarningprovisional
Western District of Oklahoma on 2026-03-11 in Dillon v. Myles Stephenson, et al. found counsel's brief contained three citation defects involving nonexistent authorities, mischaracterized authority, incorrect statutory or rule text. The court admonished counsel to verify cited authorities and avoid repeating the citation defects.
- Court
- United States District Court for the Western District of Oklahoma
- Date
- 2026-03-11
- Who used the AI
- Lawyer
- AI tool
- Not identified in the record
- Conduct
- Plaintiffs' counsel used AI only as a research assistant and cited three erroneous GTCA authorities, including a nonexistent case and incorrect reporter citations.
- Outcome
- Warning
- Penalty
- No monetary penalty recorded
- Regulatory outcome
- No separate regulatory disposition recorded
- Status
- Provisional — written by the court-decisions pipeline, awaiting the editor
- Last checked
- 2026-09-08
Primary sources for this incident
Related regulation records for this incident
No related regulation record has been linked to this incident yet.
Similar incidents on the record
- Hill v. Foundation Media LLC, No. 1:25-cv-05947 (AS) (S.D.N.Y. 2026)2026-09-29 · United States District Court for the Southern District of New York · WarningIn New York federal court, Judge Arun Subramanian ordered defence counsel to explain AI-affected quotations in a response brief, took no further action, and called the episode a wakeup call. Counsel's 1 October letter d…
- G.P. v. Jose Hernandez Arevalo, No. C26-284-KKE (W.D. Wash.)2026-09-08 · US District Court, Western District of Washington · WarningIn the US District Court for the Western District of Washington, plaintiff's counsel cited a nonexistent federal case in briefing against Turo. Judge Evanson described the citation as likely AI-fabricated, compelled arb…
- Williams v. Dallas-Fort Worth International Airport Board, No. 4:26-cv-00433-P (N.D. Tex.)2026-08-27 · US District Court, Northern District of Texas · WarningIn the Northern District of Texas, plaintiffs' counsel cited nonexistent and materially inapposite cases while trying to defeat qualified immunity. Judge Pittman called the effort borderline sanctionable, warned that ge…
- Shelbert v. Baxter International, Inc., No. 1:26-cv-06266 (N.D. Ill.)2026-08-26 · US District Court, Northern District of Illinois · WarningIn the Northern District of Illinois, Tyler Shelbert's lawyer filed a motion to strike that relied on a false reading of Instituto Nacional de Comercializacion Agricola. Chief Judge Kendall inferred AI-assisted drafting…
Cite this record
SafeLegalAI Global Legal AI Incident Tracker, “Dillon v. Stephenson”, safelegalai.com/tracker/dillon-v-myles-stephenson-et-al (accessed 2026-10-07). Data: CC BY 4.0.