Nearly two years after Sheriff Robert Luna took office and promised to eradicate deputy gangs, and three years after state lawmakers greenlighted a measure requiring police agencies to ban the groups, the Los Angeles County Sheriff’s Department unveiled a much-awaited anti-gang policy Wednesday to comply with the law.

It comes three years after California legislators passed a law requiring law enforcement agencies to ban gang membership. A report by a special counsel appointed by the Sheriff Civilian Oversight Commission last year called deputy gangs a “cancer” on the department and identified at least six deputy gangs or cliques within its ranks.

The Los Angeles County Sheriff’s Department on Wednesday unveiled its new policy against law enforcement gangs. The policy officially prohibits joining or encouraging others to join a deputy gang or hate group.

County Sheriff Robert Luna details a crackdown on deputy gangs and plans to step up fare enforcement on the Metro system.