1 Institut psycho-judiciaire et de psychopathologie (IPJP), centre hospitalier de Cadillac, 89 rue Cazeaux-Cazalet, 33410 Cadillac, France; Unité pour malades difficiles (UMD), pôle de psychiatrie médico-légale, centre hospitalier de Cadillac, 10 avenue Joseph-Caussil, 33410 Cadillac, France; Psychologie-Criminologie-Victimologie (PCV), Cours de Gourgue, 33000 Bordeaux, France; Statistics and Population Studies Department, Faculty of Natural Sciences, University of the Western Cape, Robert Sobukwe road, Bellville, 7535 Cape-Town, South Africa. Electronic address: [email protected].