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New Mexico's Supreme Court fined defense attorney Stephen Aarons $5,000 and held him in contempt after he submitted an AI-generated legal brief containing fabricated witness testimony and fake police statements in a murder conviction appeal. Aarons said he was unaware AI could hallucinate facts, and the court found he failed to verify the claims before filing them. The case is among a growing number of instances where lawyers have faced professional discipline for relying on AI tools like ChatGPT that generated fictitious legal citations and testimony, raising concerns about AI use in the legal profession.