I am guessing, and it is only a guess, that if your dog is on your property and cannot attack anyone else, then it can snarl and bark all it wants because, it "isn't out of control". The fact that it cant get to anybody else, means it's under control.
They are trying to amend the law so it does include private property.
But what about outside your property. We have all had dogs who will suddenly take a dislike to someone strange (wearing a hat) or something else. Normally sound dogs.
I don't know, yes i agree if it helps stop horrific child attacks, and chavs with time bombs on lea