While this is definitely needed, I don't think it's a starting point.
IMO, a good place to start is instituting policies requiring LEOs/PDs carry liability insurance. Similar to doctors and other medical practices (in the US). An officer is found guilty or misconduct or violating a citizen's right? Penalties are taken out of their insurance and their premium increases. Can't afford the premium? Guess who's looking for a new job?
The way I see, the pigs can keep their criminal immunity, but civil matters will have a more direct financial incentive for them to behave like they have morals.
Look into The Gateway Tapes.
The institution that made the tapes discovered the phenomenon of binaural beats, and there are declassified documents from a certain 3-letter entity detailing its possible uses. The bottom line is, binaural beats can have some therapeutic/spiritual benefits, under properly controlled conditions, but you're not going to learn a new language or quit smoking by using them.