財政部關務署
Between 1976 and 1979, he attended the University of the Ministry of State Security in Potsdam. His final thesis to graduate before attaining the rank of major in 1981 was entitled "The education of specialist forces, security and counter-terrorism in the border customs offices of the Customs Administration of the GDR as a prerequisite for targeted and differentiated inclusion of the members of the customs administration of the GDR in the system of counter-terrorism at the border crossing points of the GDR."