London cops are being told by their staff association to be "extremely cautious" about carrying work devices off duty, after the Metropolitan Police Service (MPS) deployed Palantir's technology to investigate hundreds of its own officers. The Metropolitan Police Federation, which represents more than 30,000 MPS officers, is considering legal action over the force's use of the US firm's AI to analyze employee data, including location tracking. Palantir declares itself the guardian of Americans' rights READ MORE "Courageous colleagues across London do not deserve to be treated with this level of suspicion by their Big Brother Bosses," said Matt Cane, the federation's general secretary, in a statement . "For several weeks, the federation has known of Met’s intention to upgrade its Lawful Business Monitoring software, yet we were never informed that the upgrade would include the deployment of Palantir's artificial intelligence.…