I'm afraid this would be a beginning, not a start over, because what you're describing is technically not meeting the definition of a democratic "police".
As a foreign observer, were this my country— I'd feel in presence of an occupying force, whose master and goals are unclear but randomly hostile.
Apparently they do worship the god "prison", feeding it as many people as possible, in the worst shape possible¹.
These is emphatically not the behavior of a group whose ultimate responsibility is to citizens. It is not worthy, ethically or technically, of the name police. There are other (notably italian) words to qualify such practices.
____
1: I know it's a caricature, but frankly the notion of "police" in the USA is itself but a sorry caricature, compared to any other modern rich country. Citizen-police interactions too often devolve into quasi-dystopian (certainly authoritarian) situations, straight from the 1980s of Orwell where words and actions are so twisted they no longer make any sense.