I like the pension fund suggestion. I had been thinking along the lines of forcing them to be personally liable by stipulating that any police departments/union/organization are strictly forbidden from assisting in their defense.
I realize a lot of things in the life of a cop suck. Dangerous situations/dealing with assholes/the petty stupidity of the public at large/etc. I even agree that they ought to be granted some measure of privacy. However, I've never heard of a case much less any outrage over when someone's phone was confiscated because they were filming a cop eating lunch or sitting around in their backyard when off duty. The only reason I can see that a cop wouldn't want their on-duty official actions filmed is because they are worried that they would get in trouble over something they did wrong.
I wouldn't like it if someone in my workplace was recording everything I do especially in a critical situation... Oh wait, I work in IT. We do record all that stuff.
I wouldn't like it if someone in my work filming stuff I was doing especially in really busy stressfull situation... Oh wait, I used to work retail. They have cameras everywhere.
I keep circling back around to what makes cops special that they think they get to bully people, confiscate their stuff and tamper with them to cover their own (or other officers) asses?