1. The Netherlands Institute for the Study of Crime and Law Enforcement (NSCR), Amsterdam, The Netherlands
2. Research and Documentation Centre (WODC), Ministry of Security and Justice, Den Haag, The Netherlands
3. Altrecht, Den Dolder, The Netherlands
4. Radboud University, Nijmegen, The Netherlands
5. Departments of Criminology, Psychiatry, and Psychology, University of Pennsylvania, Philadelphia, USA
6. Faculty of Law, VU University, Amsterdam, The Netherlands