I can think of a few issues which make that solution more murky. Why put more work onto the local law enforcement, who now have to deal with people from well o

I can think of a few issues which make that solution more murky. Why put more work onto the local law enforcement, who now have to deal with people from well outside their jurisdiction? There are currently people who go to point X to complain or threaten. In your model, some will arrive at point X to find out it's a law enforcement facility. Many fewer will try to go to X if it's in the middle of a body of water, because it's more obviously not a place where people live. Placing X in the water means less time is wasted on a wild goose chase. There are corrupt law enforcement officers. Isn't there the chance that, say, the state police will come to investigate small-town Mayberry with a single sheriff and deputy? Law enforcement facilities do move. Who is in charge of updating the coordinates when the sheriff's office moves a few blocks away and another business moves into the old facility?