newsSeptember 11, 2026·Ars Technica

ChatGPT-using lawyer punished for citing fake testimony from made-up witnesses

"I didn't know that AI could hallucinate facts," New Mexico defense lawyer says.

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•"I didn't know that AI could hallucinate facts," New Mexico defense lawyer says.
•This story was reported by Ars Technica, covering developments in the news space.
•AI advancements continue to reshape industries — read the full article on Ars Technica for complete coverage.

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ChatGPT-using lawyer punished for citing fake testimony from made-up witnesses

Key Takeaways

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ChatGPT-using lawyer punished for citing fake testimony from made-up witnesses

Key Takeaways

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Y Combinator’s Garry Tan wants US open-weight AI labs to ‘distill’ frontier models, too
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New Mexico's Supreme Court is punishing a lawyer for including AI-fabricated witnesses and fake police testimony in an appeal for his client's murder conviction, according to a report from Reuters. In a filing on Wednesday, the court fined Stephen Aarons $5,000 and held him in contempt for failing t