Swen is a Krav Maga Full Instructor and Wing Chun Instructor heading his own school near Cologne / Germany. Swen has been a long-time member of the German Full Contact Taekwondo National Team (e.g. German Champion, European Cup silver medallist. Further Backgrounds: Kick- / Thai Boxing; Mixed Martial Arts and Luta Livre. Swen has been a Full Professor of sports science and education since 2009, currently heading the Department of Pedagogy at the German Sport University Cologne. Academic and public activities in the field of violence prevention and self-protection (teaching, radio and television interviews). Swen is a member of the Tactical Decision-Making Research Group at the University of Liverpool, and head of numerous research projects within the civil and law enforcement domain of self-defence and violence prevention.