Johannes de Haan works as Crime Prevention and Criminal Justice Officer at the United Nations Office on Drugs and Crime (UNODC). In the Justice Section, he acts as the focal point for crime prevention where he promotes evidence-based prevention at the global level and supports field operations in the development and implementation of their programmes. He also supports the work of the Commission on Crime Prevention and Criminal Justice. Mr. De Haan has developed a particular focus on community-based crime prevention as well as on the prevention of delinquency amongst youth. Before joining the UN, Mr. De Haan worked for the Organization for Security and Cooperation in Europe, both at the headquarters in Vienna and the Mission in Kosovo, as well as for the European Union Rule of Law Mission for Iraq and the Ministry of Foreign Affairs of the Netherlands.