Publication in September 2019 of the Security and Justice Cahiers (No. 46) on "Violent Extremism and Disengagement of Violence: what psycho-criminal practices?”. The number addresses radicalisation processes from the perspective of psychology and criminology. Presentation: “A real scientific overview of the issue, the central dossier coordinated by Massil Benbouriche and Martine Aog-Evans is an opportunity to deconstruct a number of ideas...