I’m sensitive to the dangerous and difficult job that our nation’s law enforcement personnel have. That said, I do think there is a culture, stronger is some places than others, that allows police to trample civil rights at will - civil rights of black, white asian and latino. Probably won’t be a popular post on FR. Sorry!
It does seem to be more of an issue in the big cities. On the other hand, since I decided to quit drinking and doing stupid crap I haven’t had anything but friendly contact with police that I initiated.