Lawyer Uses ChatGPT and Faces Consequences for Fictitious Testimonies
Imagine the scene: an experienced lawyer, with over 40 years of practice, decides to use an artificial intelligence tool to assist in a complex case. The result? A legal disaster. Stephen Aarons, a criminal defense attorney in New Mexico, was found in direct contempt by the state Supreme Court for submitting a document filled with false testimonies and invented witnesses. The situation is a clear example of how blind trust in technology can backfire.
Aarons, hired to appeal the conviction of Oscar Renee Sandoval, who is serving a life sentence, admitted that he did not verify the information generated by ChatGPT before presenting it to the court. The detail is that he did not inform his client about the flaws in the document, which contained multiple factual and legal distortions. The New Mexico Supreme Court, in addition to reprimanding Aarons, referred the case to a disciplinary committee for possible additional sanctions.
The Mistake of Blindly Trusting AI
The lawyer fed ChatGPT with transcripts of the trial and other documents, expecting an infallible summary. But what he got were false quotes from witnesses who never existed, such as "Officer Michelle Amarillo" and "Teresa Marquez." Aarons argued that he did not know that AI could "hallucinate" facts, but this justification did not convince the judges. They were emphatic in stating that, regardless of the source, it is the lawyer's responsibility to ensure the accuracy of the information presented.
The harshest criticism came from Justice C. Shannon Bacon, who pointed out that even her 13-year-old nephew and her 75-year-old stepmother know the risks of blindly trusting AI. She questioned whether Aarons was truly unaware of the news about the limitations of these tools or if he simply chose to ignore them. The lesson here is clear: technology can be an ally, but it does not replace professional responsibility.
The Real Impact on the Client's Life
What may be more concerning is the impact this mistake had on Aarons' client. The Supreme Court ordered that a new lawyer be appointed for Sandoval, and all previous documents were removed from the record. While Aarons faces possible penalties, it is Sandoval who remains imprisoned, waiting for his case to be reviewed.
Aarons, for his part, expressed regret and hope that the disciplinary committee would consider the mistake as an honest error. He also suggested that the court establish clear guidelines for the use of AI in legal documents, but the judges quickly dismissed this suggestion as a distraction from the main issue: the lack of verification of the information.
Responsibility Cannot Be Delegated
Aarons' case serves as a warning to all professionals who rely on advanced technology. It does not matter if the tool is a cutting-edge AI or a law intern: the ultimate responsibility for the accuracy of the information always lies with the lawyer. As Judge Michael Vigil pointed out, the problem is not the tool itself, but the lack of verification before presenting the document to the court.
In the end, Aarons' story is a reminder that technology, no matter how advanced, cannot replace human judgment. Blind trust in AI without due diligence can have serious consequences, not only for professionals but especially for those who depend on them. It is a call to responsibility and caution in an increasingly digital world.




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