The police where I live are generally good, and I imagine that's the case many places. Treating police as the enemy, or a punching bag, is unfair and counterproductive.

(I can't speak to any places that might have a lot of corruption or ill intent.)

Places that aren't too corrupt, you'd be better off encouraging a partnership among citizens, police, lawmakers, and other officials. Which is how it's supposed to be. Everyone in the government has their respective duties, and they operate within a framework that's ultimately decided by the people.

If, for example, police propose certain surveillance, to help keep everyone safe, within their scope, then sometimes someone with different or larger scope might need to say, yes, but there's also these other considerations. Eventually a decision is made by the public or their elected representatives, and everyone nods with respect, and aligns, and continues their respective duties within the frameworks.