Dr. Kwan Ming-tak, Kalwan (PhD in Criminology (HKU), Registered Social Worker): Hon Lecturer in Department of Sociology, the University of Hong Kong, and Senior Advisor (also Former Associate Head) of College of Humanities & Law, HKU School of Professional and Continuing Education. Expertise areas in criminology, criminal justice, social work, etc. Appointed specialist of the Hong Kong Council for Accreditation of Academic & Vocational Qualifications, member of the Research Advisory Group, Narcotics Division, Security Bureau, Honorary Advisor and External Examiner to various training institutions.