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.

LA County Sheriff Robert Luna announced a new policy Tuesday that will ban deputy’s participation in law enforcement gangs and hate groups.

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.

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

The Los Angeles County Sheriff's Department announced a new policy Wednesday banning gangs among deputies in the department, an issue county officials have said has spanned decades.