> The question to ask is of the net harm on society would be higher if cops were hesitating at every move.

We have to draw the line somewhere. How about, "Cops shouldn't harass people once charges against them have been dropped"?

> The stories against the police are incredibly damning, but the statistics are pretty tame.

Every minute wasted harassing an innocent person is a minute better spent pursuing actual criminals. There are numerous cases (like the Central Park 5) where the police prematurely focused on suspects of convenience while the real criminals walked free and killed again. Stronger rules would protect us.