These protests and riots are happening precisely because the alternative mechanisms such as the one you are suggesting have failed time and time again. Here in

These protests and riots are happening precisely because the alternative mechanisms such as the one you are suggesting have failed time and time again. Here in NYC we have a spineless mayor who has completely given up even attempting to exert civilian oversight on the police since 2014. They have free rein to do whatever they want and to "self-police" themselves, and because of the union violent cops are never fired.