Ruben is a BJJ black belt and Miami area police officer. Ruben discusses his start in jiu-jitsu, competing and training full time in jiu-jitsu prior to becoming a police officer, his transition to becoming a police officer, the difficulties that he encounters as a police officer, how jiu-jitsu has been beneficial in keeping himself and others safe. Ruben also discusses why many police officers are resistant to learning BJJ, how "Sport Jiu-Jitsu" and the tournament environment is useful for defense.