I’d like to make a distinction between a police force that is the tool of a dictatorship, and a police force with an accountable leadership that is caught in the middle of a divide between a subcommunity that hasn’t successfully been integrated (ie. a ghetto) and the larger community in which that subcommunity resides. In the former case the police have no real legitimacy besides that which comes from the barrel of a gun. In the latter case, they do have the support of the larger community and the legitimacy that comes with that, even if they are seen as outsiders with guns in the “ghetto”.
I don’t think the problematic interactions with law enforcement in the latter case are entirely law enforcement’s fault. It’s not as if these places are tranquil islands of civility until a brutal cop enters the hood. Far, far more people living in ghettos are murdered by their fellow ghetto dwellers than by cops. But human beings tend to magnify the threat of outsiders in comparison to locals and those more like themselves. This works in -both- directions, and what passes for elites (people with status and money to throw around) in these downtrodden neighborhoods take advantage of that to instigate and agitate against law enforcement to keep their gangs, drug and prostitution rings intact, confident that their neighbors won’t rat them out.
it’s not my intention to minimize the damage that bad cops and police brutality do to police credibility, it is a very real problem, but there are two sides to this dance in hell, and not every charge of police brutality is legitimate. Just look at Ferguson.