Lex OpdamLex Opdam has been teaching Goju-ryu Karate- do as a black belt since 1988. After several years of experience as a teacher in karate, and working as a self-defence and fitness instructor, he joined the police force and is now a full time police instrctor in the Netherlands. Lex Opdam received the title and rank of Renshi, Rokudan, Sixth degree black belt, by his teacher and Karate pioneer Sensei Anthony Mirakian. Read More Read Less