End qualified immunity, require a bond for each police officer, just like a plumber, or electrician, or any other professional and when the bond becomes too expensive, that bad cop goes away. Game over.
Up through the “civil war”, officers in the state militias were elected. Federal officers of course were commissioned by Congress.
It would be completely reasonable to require all police officers to stand for election on a routine basis, and be required to live in the precinct that they patrol. That actually used to be the norm in many cities.
A bond is not a bad idea, but the real question is: who are these Special People? Do they have any relationship to the people they “police”, or are they just meat robots? Who puts them in their positions - the populace or some hiring panel with an agenda?
Excellent idea!