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Sanctions — Week of 2025-09-22

24 AI-hallucination sanctions decided between 2025-09-22 and 2025-09-28 (ISO week 2025-W39). Every ruling below is sourced from the public docket — case name, decided date, outcome, AI tool implicated (when named), and any monetary penalty language pulled verbatim from the ruling.

Week at a glance

Total rulings
24
With monetary penalty
5 of 24
Courts
22
ISO week
2025-W39

Outcomes this week

  • Warning5
  • Admonishment1
  • Adverse Costs Order1
  • Adverse Costs Order; 6 Hours Cle; Bar Referral1
  • Court Accepted Corrected Briefs1
  • Court Declined To Impose Sanctions Now But Cautioned Plaintiff's Counsel And Warned That Future Submission Of Inaccurate Or Ai-generated Authorities Will Trigger A Nrcp 11(c)(3) Show-cause Hearing And Potential Sanctions.1
  • Disallowed Costs Order1
  • Monetary Sanction1
  • Monetary Sanction; Self-report To State Bars1
  • No Sanctions1
  • Order To Pay Opposing Counsel's Fees1
  • Order To Sworn Accuracy Of Citations1
  • Petition Withdrawn1
  • Protests Dismissed For Abuse1
  • Show Cause Order1
  • Warning To Both Parties1
  • Warning, Arguments Disregarded1

AI tool implicated

  • Implied15
  • Unidentified7
  • ChatGPT1
  • FastCase1

This week’s read-across

24 rulings landed on the docket between 2025-09-22 and 2025-09-28. The most common recorded outcome this week was Warning (5 of 24). Of the 24 rulings, 5 carried an explicit monetary penalty in the ruling text.

Implied was the most-implicated AI tool this week (courts rarely require the attorney to name the tool by product name on the record; “Implied” means the ruling described an AI-generated brief without a product name).

The pattern each week is remarkably stable: existence failures (Layer 1) dominate. Attorneys file briefs containing citations that do not exist in any primary source — usually because a general-purpose LLM fabricated the citation and no deterministic pre-filing check caught it. Every ruling below is a preventable filing. See /verify for the pre-filing tool.

All rulings, week of 2025-09-22

Sigal v. Croner

Nevada DC · Decided 2025-09-22 · Court declined to impose sanctions now but cautioned Plaintiff's counsel and warned that future submission of inaccurate or AI-generated authorities will trigger a NRCP 11(c)(3) show-cause hearing and potential sanctions. · AI tool: Implied.

Read the full teardown →

Courts represented this week

Nearby weeks

← Prev: 2025-W38 (23)Next: 2025-W40 (24) →

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Informational only. Not legal advice. Data derived from public court records; corrections at /contact.