LLMMedium
$31,000 Sanction in Lacey v. State Farm Tied to Purportedly Undisclosed Use of LLMs and Erroneous Citations
- Occurred
- Apr 15, 2025
- Published
- May 13, 2025
- Source
- AI Incident Database
Summary
In the case of Lacey v. State Farm, two law firms were sanctioned $31,000 after submitting a legal brief containing reportedly erroneous citations generated using AI tools. The court reportedly found that the lawyers failed to disclose the use of AI, neglected to verify its output, and refiled a revised brief with additional inaccuracies. Judge Michael Wilner deemed the conduct reckless and issued sanctions for what he described as "improper" and "misleading" legal filings.
Developers
- Large language model developers
Deployers
- K&L Gates LLP
- Ellis George LLP
Harmed parties
- Michael Wilner
- K&L Gates LLP
- Ellis George LLP
- Defense counsel in Lacey v. State Farm
- Judicial integrity
Tags
- Large language model
- LLM
- Hallucination
- Legal sector
- Misleading citation
- Law firm
- Court sanction
- Plaintiff misconduct
- Document accuracy failure
- Professional accountability
Classification
Category confidence: 90%
Severity confidence: 85%
Rationale: Case involves sanctions for undisclosed LLM use and hallucinated citations in legal filings.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8