I'm glad, but respectfully - that's not enough. I'm really happy that you guys aren't using your broadest powers afforded to you all the time. Stuff like mandatory bag checks for everyone in the subways, ICE agents with limitless power within 100 miles of the border, searches of everyone and anyone on the street in the name of "anti-terrorism" (especially when there's a 'suspicious package').

But you could and you'd be protected for doing so. I don't believe in a government where the police have the power to do anything and the only thing stopping them is their personal restraint and judgement. I want a government where the police must be authorized, by the courts, to take action that cross into my 'territory' (my property, privacy, person, and liberties). The key here is the courts act as the check and balance prior to the action being taken. Not your superior (who is pretty much on your side, and more worried about backlash and admissability than 4th amendment rights).

A GPS tracker is an excellent example because there's no immediate harm to the officer or risk of losing evidence. If you can't get a court to agree to it, just follow him with your agents. Use a copter, use binoculars, use cameras with telephoto lenses.