The city Of Oakland, basically has condoned this type of behavior during protests. They actually tacitly promote many of these protests.
More than that, the City of Oakland, Berkley, University of California (entirety), BART, Richmond, Alameda County and San Francisco, punish, demote, suspend, fire and prosecute police officers and deputies that take the most minor enforcement actions against Negro thug criminals and Occupy rioters.
It is indicative of the subservience to Marxists of the law enforcement community that they just don't quit and tell the slime politicians running these municipalities to deal with the rioters themselves.