On 29th April, the Maison Française d’Oxford, with the support of the Institute of European and Comparative Law, the Institut Michel Villey and the Oxford Jurisprudence Discussion Group, hosted a conference on crisis legislation and laws aiming to fight terrorism in the Western world. While these laws, enacted by several countries in the aftermath of recent terrorist attacks, often share the vocabulary of a “state of exception”, engaging its political and philosophical references, they must be distinguished from it. Indeed, whereas a “state of exception” interrupts the rule of law in principle, these laws have melded the state of exception into the legal framework. The rule of law is no longer interrupted: the rule of law is modified and the exception becomes the rule. The focus of this conference was to question this transformation, not necessarily with the aim to evaluate it, but in order to think it through while drawing attention to the inadaptability of traditional legal and philosophical categories in a new/changing political world. On the initiative of Mr Pierre Auriel and Dr Fabien Girard (MFO), speakers and moderators from a wide range of academic fields - constitutional law, criminal law, philosophy, politics - and from different horizons and legal cultures - France, United Kingdom, USA, Canada - presented extensive works on these complex topics and engaged in a lively debate with the audience. The proceedings will appear soon in the review Jus Politicum.