All over Europe, the question of how best to manage and implement the resettleement and reintegration of released prisoners in society has become increasingly important. Transition management requires work in custody as well as cooperation and co-ordination between criminal justice agencies, statutory and voluntary providers and other partners involved in the offender¿s resettlement and reintegration. The objective of the project ¿Justice Cooperation Network ¿ European treatment and transition ma-nagement of high-risk offenders¿ has been to address these questions and to develop effective and efficient management principles, processes and practices for highrisk offenders leaving custody that can be shared and used by the project partners and across Europe. The project team comprises the responsible bodies from four project partner states, Estonia, Finland, Ireland and Mecklenburg-Western Pomerania (Germany). The Ministry of Justice and Prison Service of Belgium, the Ministry of Justice and Public Administration of the Republic of Slovenia, the Ministry of Justice of the Slovak Republic, the Confederation of European Probation (CEP) and the Federal Ministry of Justice and Consumer Protection in Germany are associated partners in the project. The publication is structured according to the programme of the final conference in Warnemünde in September 2014.