I know, in a lot of countries law enforcement is likely to abuse the tools but we shouldn't blame the tools for it. Public servants should be of the highest so

I know, in a lot of countries law enforcement is likely to abuse the tools but we shouldn't blame the tools for it. Public servants should be of the highest social standard available. They should be selected to be polite, patient and never lose their cool. Step out of line once and you are out like a bad dancer. They should be immediately fired and persecuted if they spy on their ex. Every lookup must be tied to a crime. Like you said, if the data exists it will be used. If they can construct an argument to have an interest in someone at that time and day it should work just fine. When in doubt fill out a formal request. We have control over who gets hired or not. If we hire sub optimal people, train them poorly and excuse their behavior any tool will get abused. Then the whole thing doesn't work.