Going into detail: yes, we have to make sure (even if it takes federal laws and funds) that every cop in the US -- federal, state, county, and municipal -- wears a bodycam when on duty. The cameras must include good microphones and be designed so that the wearers can't turn them off or censor them. They must have sturdy batteries that can run for 12 hours without a recharge, powerful enough to transmit constantly to local receiving stations that will store all the records on computers, regardless of structures in the way. They must also be on a part of the uniform that's never covered up. And yes, give the cops bullet-proof vests so they won't feel In Fear For My Life so readily.
Second, likewise make certain that every cop in America is supplied with a taser, as well as a hand-stunner, and that the cops get extensive training in their use. Tasers need redesigning for features like reloading quickly, longer and sharper prongs to get through layers of cloth, and multiple-shot capacity. When stun-guns are as reliable as lethal guns, cops will be more likely to use them first.
Third, get the military, which has the records, to come take back all the tanks, rocket-launchers, armed helicopters, fighting vehicles, etc. that it handed out to various police departments, and give that hardware to the state National Guard chapters, where it belongs. If the cops find themselves in a situation where they need military hardware, they can always summon the local National Guard -- which has specific training in the use of such.
Finally, yes, go after the cops who killed those unarmed civilians with Deprivation of Civil Rights charges, lawsuits, and anything else that will stick. Nothing will change the thuggish attitudes of cops, but the certainty of getting legally stomped if they have too much fun at the citizens' expense will at least make them more circumspect.
To use an old phrase, cops who aren't thugs at heart will have nothing to worry about; if they're innocent they have nothing to hide. Right?
--Leslie <;)))>< )O(