I think that at least in theory that is how it is intended to work. But it doesn't really solve the issue, because it's still a strict hierarchy. So the top e

I think that at least in theory that is how it is intended to work. But it doesn't really solve the issue, because it's still a strict hierarchy. So the top enforcement organization is hard to force accountability on. And like you said, states rights and all that, it might be outside the Constitutional powers of the federal government to actually do this. On the bright side, I suppose, getting at least one state to build a model of a working checks & balance system on police is a lot easier than making it happen federally.