First and foremost I am deeply indebted for the invaluable assistance of Prof. Dr. Erich Buchholz of the Humboldt University in East Berlin in carrying out my research in the GDR since 1984; he was unfailingly responsive, and his patient explanations as well as his extensive practical aid in making contacts and arrangements for me facilitated comprehension of the GDR criminal justice system.
Many members of university faculties and academies in the GDR were supportive and informative. In particular, I would like to thank Prof. Dr. Horst Luther ( Humboldt University), Prof. Dr. Günther Kräupl ( Jena University), Dr. Hans-Dietrich Lehmann ( Humboldt University, Supreme Court), Prof. Dr. Rolf Uhlmann ( Humboldt University), Dr. Bernd Löwe ( Academy of Sciences of the GDR, Humboldt University), and Dr. Frohmut Müller ( Academy for Political Science and Jurisprudence). Without the willingness of members of the police to share their knowledge with me, I could not have completed the research. Special thanks are due to Oberrat Wolfgang Degenhardt of the Public Relations Department of the police presidency in Berlin, and to Dr. Ernst-Dieter Erdmann and his colleagues who had responsibility for the process of dissolution of the MfS in the district of Berlin for providing extensive information and material concerning the operation of the Ministry for State Security.
Understanding of the GDR was enhanced as well by conversations with scholars in the FRG who have for decades studied its legal and political systems. Especially helpful were Professor Dr. Hartmut Zimmermann ( Free University of Berlin) and Professor Dr. Friedrich-Christian Schroeder ( University of Regensburg).
I would like to express my appreciation of the consistent encouragement of the dean of the College of Criminal Justice, Dr. Willian J. Mathias, and to the other members of the faculty of the college and the students whose interest and questions provided stimulation.