To live by the Yakuza codex, members must adhere to a strict set of rules and customs:
The Yakuza didn’t emerge from slums or drug dens. They evolved from two distinct Edo-period (1603–1868) groups: yakuza codex
Many groups officially post their ethical rules in their offices, which typically forbid: Using or selling drugs. Theft or petty robbery. Mugging or "purse snatching." Indecent acts (sexual assault). Any behavior that would bring "shame" to the organization. The Oyabun-Kobun Structure To live by the Yakuza codex, members must