So it's okay for you have a drone, even a armed one, but it's not okay for the police to have one? This would be the equivalent to demanding the police not use cars and instead case suspects on foot. As a result of the high tech age we live in rapid changes in what is possible are happing one of them is unmanned arial vehicles, in another decade they will be cheap enough that you could get your own, and a decade after that high schoolers will use them for their school science fair.