1. Research Scientists, and Director, respectively, DNA Identity Laboratory, Institute of Legal Medicine, University of Berne, Buehlstrasse 20, CH-3012 Berne, CH.
2. Research Chemist, Forensic Science Research and Training Center, Laboratory Division, Federal Bureau of Investigation Academy, Quantico, VA, US.
3. Forensic Pathologist, Institute of Legal Medicine, University of Freiburg im Breisgau, DE.