J.A.E.Vervaele@uu.nl). All are Professors of Criminal Law and Criminal Procedure at the Willem Pompe Institute for Criminal Law and Criminology, School of Law, Utrecht University, the Netherlands. 2 Stefan Trechsel is a judge at the Trial Chamber III of the International Criminal Tribunal for the former Yugoslavia and the former President of the European Commission of Human Rights. 3 In this publication, the AIDC questionnaire is to be found as an appendix to the report. The AIDP reporter has chosen to incorporate the questions into the report, which also ends with resolutions that have been adopted by the International Congress, a procedure not applicable at the AIDC congress in Mexico. 4 As the AIDP reporter notes, security concerns are a social construction and as much about fears and perceptions as about substantive empirical changes in actual crime rates and patterns, for which criminological data provide no support.