It might have to be a federal or state system that prosecutes this kind of stuff in the end, because the local system wont do it. Put the DAs, the police and m

It might have to be a federal or state system that prosecutes this kind of stuff in the end, because the local system wont do it. Put the DAs, the police and maybe the judges on the hook. And the federal people who would do this (FBI maybe?) would have to be completely disconnected from the local police / judge organizations, probably on rotations like a foreign diplomat service. The key is they have to be completely different career systems, where they don't fraternize or socialize with each other, and you'd probably have to make it somewhat antagonistic culturally so they don't end up doing something similar. Which is why it has to be a different organization. Internal affairs is a systematic failure probably because it's within the same organizational tree as everyone else. It's really hard to incentivize people to do the 'right thing' when the incentives make it career suicide to do the right thing because you'll become a dangerous pariah as soon as you do. Also to start I'd start with actions in court / evidence, not in the field until that organization starts running out of those actions to enforce because they've installed enough fear in the police system. That way the police can never have the cultural excuse to do their crap because 'their life is in risk and it's a split second decision' because your lying on boring safe paperwork and court where you have plenty of time to think about your actions, and over %50 of this will probably be lawyers actions too. What is the first steps? Probably allying in blue states with anti-police movements and working with them in lobbying for a state enforcement arm that enforces specifically against unjust plea deals, testilying, withholding exculpatory evidence and focusing on prosecutors with out of the norm high conviction rates first. You'd also have to make it pay as well as private, which will also be hard. A wealthy state like california can fund such a thing, and it would probably be small, like 40 lawyers & their support staff, and be crazy effective. Unjust plea deals will probably be last politically if it is at all possible because the system will scream about it will screech to a halt and to address that is a much bigger issue.