He has taught psychology relating to violence at universities in both the U.S. and overseas, and is Chief of the Israeli Krav Maga Association, Gidon System, in Germany, holds Black Belts in Judo and Ju-Jitsu. He also serves as a consultant to an international paramilitary and close protection team and is co-owner of Israeli School Security, a school security consulting and training firm. David Hopkins resides in Germany.