The New Mexico Supreme Court has fined defense attorney Stephen Aarons $5,000 and held him in contempt after he submitted a legal brief containing entirely fabricated witness testimony and police statements generated by ChatGPT. Aarons, who was handling an appeal for a murder conviction, admitted to using the AI tool to summarize trial proceedings but failed to verify the accuracy of the output. The court expressed deep frustration with the attorney's negligence, noting that his filing included completely fictional accounts of the crime, such as specific details about the shooter's attire that never existed in the trial record.

Beyond the monetary fine, the state’s highest court has referred Aarons to a disciplinary board, citing a lack of remorse and professional concern for his client. While Aarons maintains that his reliance on the technology was an "honest mistake" and a lesson in the dangers of AI "hallucinations," the incident highlights a broader, troubling trend within the legal profession. As more lawyers face sanctions for submitting AI-generated documents filled with fake case citations or misquoted laws, this case serves as a stark warning to legal professionals that they remain solely responsible for the integrity of their filings, regardless of the tools they employ.