Kohls v. Ellison, No. 0:24-cv-03754 (D. Minn.)
other
In the US District Court for Minnesota, an expert declaration defending the state's political-deepfakes law was itself tainted by AI: Stanford professor Jeff Hancock's GPT-4o-drafted report cited two fabricated academic articles and misattributed a third. Judge Laura Provinzino excluded the declaration, calling it ironic that an AI-misinformation expert fell for AI's 'siren call'.
- Date of decision/order
- 2025-01-10
- Court
- US District Court, District of Minnesota
- Jurisdiction
- US-FEDERAL
- AI tool
- GPT-4o
- Conduct
- In a First Amendment challenge to Minnesota's political-deepfakes statute, the State's expert — Stanford misinformation professor Jeff Hancock — filed a declaration drafted with GPT-4o that cited two non-existent academic articles and misattributed a third. Hancock admitted using AI and not verifying the citations.
- Consequence
- See outcome
Sources
Cite this incident
SafeLegalAI Global Legal AI Incident Tracker, "Kohls v. Ellison, No. 0:24-cv-03754 (D. Minn.)", safelegalai.com/tracker/kohls-v-ellison (accessed 2026-07-16). Data: CC BY 4.0.