The combination of big data and the ability of algorithms to identify patterns has led to new and complex inferences being drawn about people who are liable to experience crime, places likely to host it, and variables associated with its solvability. The possibility that police officers could be informed in advance that there is a high risk that a particular person is preparing to commit a crime, engage in violence or thinking of carrying out an act of terrorism is impossible to ignore. The development and utilisation of predictive and Artificial Intelligence technologies sounds progressive and an antidote to some current policing approaches that have garnered public opprobrium. In the recent past, the strategies advocated most often to militate against substandard policing included the drawing up of a more prescriptive code of conduct, the improved supervision of police conduct and the establishment of effective systems of complaint and inquiry.