What on earth do leash laws and someone stealing a dog from in front of the shops have to do with eachother??? That's a pretty long jump.
The only really relevant bit in your response was that you agree with the leash laws. Good. That's what this is about. And I don't.
Lots of dog-related laws are short-sighted and often plain idiotic. I want something better, like the European law Margoo mentions. A dog owner licence. More regulation, but with a lot more common sense and a better outcome for dogs and dog owners.