I don't believe in "police" as a transnational group. I don't believe that the actions of police in some other country carries any information about the culture of police in mine.

If police use these systems outside of their intended and legally mandated forms, that must be dealt with. We do need effective police though. We do that with robust surveillance infrastructure for police queries in the database, possible even with a mandatory log of queries as part of discovery.

I don't have to "think" it will stop them, I can utilize the levers of democracy to check them.