This document discusses the paradigm shift in criminal justice from reactive to preemptive approaches and the erosion of traditional limits on interference with civil liberties in the name of security. It notes that this has been identified by many academics and reports. The normal principles of lawful interference like clear laws, individual justification, targeting, and open investigations are being replaced by vague laws, broad arbitrary interference, secret investigations. It argues that exceptions to these principles should only apply in a real state of emergency threatening the life of the nation, which Europe is not currently in legally. It quotes Lord Hoffman that terrorist threats do not rise to this level of threat to national existence. The document criticizes the mindset of security professionals that sees threats as existential rather