I think the police need full time recording devices facing ahead of them. It would clear up tons of confusion pronto, even some fender bender disputes. With that, we could consider given them even more leeway than they currently have.
Such devices are now on the market. Personally, I think that all uniformed officers and elected officials should be required to wear and use them - as they tell us, the good ones have nothing to hide (and can be quickly cleared of bogus charges through this tech) and the bad ones will get caught.
Albuquerque Police now wear minature video cameras clipped on their uniform (in addition to sound recording). Some officers bought them prior to being issued.
APD does a pretty good job, the first officer was on scene of the workplace shooting yesterday within a minute and they were removing the wounded and moving in on the shooter (who offed himself - another brave guy) within three minutes.