1. Research student and professor, respectively, Forensic Science Research Unit, Chemistry Department, The Faculties, Australian National University, Canberra, AU.
2. Professor, Institut de Police scientifique et de criminologie, Université de Lausanne, Place du Château 3 1005 Lausanne, CH.
3. Senior tutor, Chemistry Department, The Faculties, Australian National University, Canberra, AU.