ALT Evidence Law’s AI Problem and the Hearsay Solution by Jeffrey Bellin 140 HARV. L. REV. (forthcoming 2027) Abstract As artificial intelligence (A.I.) seeps into our daily lives, A.I. generated evidence and testimony will increasingly appear in court. For the most part, American evidence rules are up to the task. The rules require testifying experts to demonstrate the reliability of any A.I. tools they rely on, and allow courts to deter and detect forgeries, even those generated by A.I. There is a gap in the evidence rules, however, when non-expert witnesses testify about the outputs of artificial intelligence. For example, no evidence rule squarely prevents a victim or police officer from testifying that ChatGPT concluded that the defendant was the perpetrator. Evidence policymakers are scrambling to fill this gap.....