Katalin Parti and György Virág participated at a two days workshop on "/Dangerous Offenders in the Prisons of Germany and Hungary/", at Max Planck Institut für auslandisches und internationales Strafrecht,Freiburg, dealing with the subject and the possibilities of a joint research. They delivered lectures and gave presentation under the titles of "Research on criminal deviance in Middle-Eastern Europe: The OKRI (National Institute of Criminology, Hungary)" and "Sexual Offenders in Hungarian Society and Prison", respectively.