Doubly so when they're prison riot control officers who all look like they're clones of Byron Hadley, The Screw Everyone Hates from "Shawshank Redemption".
When a prison guard sees a crowd chanting protests, they are going to react very badly.
Get them out.
And get badges on the rest of them. Then get them out, too.
Consider that NYPD, for all of its faults, actually has the Civilian Complaint Review Board. Which provides citizens the ability to officially complain about bad behaviors of various cops.
However, review boards do not exist for all police forces. And many review boards have insufficient power to properly reprimand a specific cop who does a bad job.
We need a specific organization to police the police. FBI kinda-sorta does it (but not under this administration. Under Obama, the FBI was charged with investigating police brutality). Since the FBI's orders changes with the whims of the President, it is clear we need a long-lasting organization that provides oversight even when a Republican is in office.
What if the law says explicitly that an officer in uniform without a badge and name tag has no legal authority and can be presumed to be committing a felony?
The most important part of law, is law ENFORCEMENT. If you do not assign someone to enforce a law that is written, then it will be ignored.
Maybe have the top-level official be elected at a very-fine granularity, but with the power to enforce across locality lines? Like—elect at the county level, but can enforce anywhere in the State?