Legal news service Law360 has introduced a policy requiring every article to pass through an artificial-intelligence “bias” detector before publication, according to a NiemanLab report confirmed by newsroom staff on 2 July. The tool also generates headlines, story tags and other edits aimed at enforcing what management calls a “neutral voice.” Law360 is owned by legal-information giant LexisNexis. The Law360 Union, which represents about 350 journalists, says the system is unreliable and risks diluting factual reporting. The union has started a petition urging management to suspend the mandate and consult staff on any future use of the technology. Reporters say the decision follows recent management complaints that coverage of the Trump administration showed liberal bias. LexisNexis and Law360 have not publicly commented on the petition. The dispute adds to a wider reckoning across newsrooms over the role of generative AI in editorial workflows, particularly when used for gate-keeping rather than support tasks.