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Geographic scope: 19 public matters across the global corpus.Clear all filters

Public matterCourt / jurisdictionDateRecorded AI toolAmount Impact

Duckett v. Board of Regents of the University of Wisconsin Systemfake citations · fabricated quotes · civil rightsState filter: WIW.D. WisconsinWI · federalOct 7, 2026Unidentified—low Xinyue Hippe v. Retention Brands, LLCfake citations · misrepresented authority · civil rightsState filter: WIE.D. WisconsinWI · federalJun 23, 2026AI (implied, unspecified)—medium William Louis Armstrong, III v. City of Milwaukeefake citations · civil rights · trialState filter: WIE.D. WisconsinWI · federalMay 11, 2026Unidentified—low Pelishek v. City of Sheboyganfake citations · fabricated quotes · misrepresented authorityState filter: WIE.D. WisconsinWI · federalSep 18, 2025Westlaw's Quick Check and AI Case Search Tool$4.5Kmedium Arajuo v. Wedelstadt et alfake citations · tort · trialState filter: WIE.D. WisconsinWI · federalJan 22, 2025Unidentified—low Plumbers & Gasfitters Union v. Morris PlumbingtrialState filter: WIE.D. WisconsinWI · federalApr 18, 2024No tool named in source—low Frier v. Hingissfake citations · fabricated quotes · civil rightsState filter: WIE.D. WisconsinWI · federalSep 15, 2023AI (implied, unspecified)—low

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7 matching matters

Weekly alert: new AI-hallucination court cases