1. Department of Criminology, Penal Law & Social Law, Institute for Social Drug Research (ISD), Institute for International Research on Criminal Policy (IRCP),
2. Department of Special Needs Education,
3. Department of Criminology, Penal Law & Social Law, Institute for Social Drug Research (ISD),
4. Department of Social Work and Social Pedagogy, Ghent University, Ghent, Belgium, and
5. GERME, Institut de Sociologie, Université Libre de Bruxelles, Brussels, Belgium