Drones, predictive software, algorithmic video surveillance, facial recognition: the use of the latest surveillance technologies is becoming commonplace within police forces. Far from curbing crime, all these innovations actually contribute to amplifying state violence. They narrow our political imaginations and place the city under security control. This is what this book demonstrates, drawing on experiences and insights gained during recent struggles against police surveillance. From the security industry to the inner workings of the Ministry of the Interior, from the CNIL to the patrol car, it traces the links between techno-solutionist hegemony and the ongoing drift toward authoritarianism.