Courts on AI / Fabricated or misquoted citations

Euphoric, LLC v. Westport Community Improvement District

United States District Court for the Western District of Missouri · Federal district courts · MO · 2026-06-03 · No. 4:25-cv-00023 · order

Fabricated or misquoted citations Competence, fees and billing

On 2026-06-03, in Euphoric, LLC et al. v. Westport Community Improvement District, et al, the Western District of Missouri admonished the filer to verify authorities before presenting AI-assisted or otherwise unsupported legal citations. Counsel filed a motion using quotations that did not appear in the cited source, nonexistent or hallucinated authorities, and authorities used for propositions they did not support.

Disposition: The court ruled on numerous dismissal and amendment issues and admonished plaintiffs’ counsel about inaccurate and misleading citations.
Recorded conduct: Plaintiffs’ briefs included incorrect case numbers, Westlaw citations, dates, and misleading uses of real cases, including authorities identifiable only by case name. The court did not find bad faith but admonished counsel about citation duties. — outcome: warning; actor: lawyer
Canonical record: Incident tracker entry — verified outcome, regulator disposition and related rules

What the court wrote

Verbatim from the court's document (public domain). Ellipses mark omitted text; nothing is paraphrased.

whatever the root cause for these inaccuracies and errors (including any use of legal or non-legal generative AI tools, for example), the professional duty and responsibility of counsel ... requires that careful and proper attention to detail is provided

Authorities cited in the passage: DePeralta v. Dlorah · Doss v. Epic Healthcare Mgmt. Co., 901 S

Court document: govinfo.gov
Public copy first read: damiencharlotin.com
Read: 2026-09-08 · court's own copy read
Found via: charlotin-hallucinations-db
Notes: Read from the copy held by Damien Charlotin's AI Hallucination Cases Database (CC BY 4.0) of the court-authored document. Official copy located 2026-09-08 via govinfo; quoted passage confirmed in the official document. Re-coded from the document 2026-09-08 (independent second read).

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