Surreptitiously mine database for incriminating information. Build case. Apply for warrant. Oh look, surprise surprise, the warrant turned up something. Yes,

Surreptitiously mine database for incriminating information. Build case. Apply for warrant. Oh look, surprise surprise, the warrant turned up something. Yes, if we trust law enforcement, blah blah blah. The point of having checks on government authority is so you don't HAVE to trust government. Government is not to be trusted; it is to be kept in check. Your safety, your rights, should not be contingent upon trustworthy official.