Palantir says it is challenging the decision by London Mayor Sadiq Khan to block a planned £50 million contract with the Metropolitan Police for AI software used in criminal investigations. Multiple outlets report that Khan intervenes in late May, prompting a dispute between the mayor’s office and the Met over the procurement and oversight of the deal. The mayor’s office says the procurement process did not demonstrate value for money and failed to follow required procedures. Separately, coverage also says concerns were raised about whether Palantir would align with London’s stated “values,” and about how the contract was handled through procurement. Palantir is seeking legal action in response to the decision, with reporting indicating the company will sue or otherwise challenge Khan’s intervention. The planned system is described as software intended to automate or support intelligence analysis as part of police criminal investigations. The reporting focuses on the basis for blocking the contract—procurement compliance and value-for-money concerns—rather than on the software’s performance.