Gym
Teerikukonkuja 3, 00700 Helsinki
German ju-jutsu is a martial art related to traditional Japanese jujutsu, developed in Germany in the 1960s using techniques from jujutsu, judo, karate and various other traditional and modern martial arts. Its governing body in Germany is the DJJV (Deutscher Ju-Jutsu Verband); its competitive sport aspects are coordinated internationally by the JJIF (Ju-Jitsu International Federation). The system is taught to the German police forces.
Source: Wikipedia