my uncle used to be a riot control cop, tokyo japan. japan everything is done in mass, so when they got called they would leave guns at the station. as a cop in japan you must be of teaching level (2nd degree black belt)in two martial arts, he was judo & aikido. to help get these degrees they do a live in program at the dojo every day training for a year.
"every second your not training, he is..... and he is doing it, just to kick your ass"