High court tells UK lawyers to stop misuse of AI after fake case-law citations

Ruling follows two cases blighted by actual or suspected use of artificial intelligence in legal work

The high court has told senior lawyers to take urgent action to prevent the misuse of artificial intelligence after dozens of fake case-law citations were put before the courts that were either completely fictitious or contained made-up passages.

Lawyers are increasingly using AI systems to help them build legal arguments, but two cases this year were blighted by made-up case-law citations that were either definitely or suspected to have been generated by AI.