In today's Libertarian Enterprise there is a very good article detailing what must be done in order for police to become the peace officers they should be instead of the badged criminals they are: Toward a Police Reform Movement by L. Neil Smith.
To his suggestions I would only add: Police uniforms should be fluorescent orange (with the huge black letters announcing the officer's name and badge number on the back and chest, as Smith suggests) and they should be forbidden to carry any chemical or electical "compliance" devices while on duty.
