I would not support any such law.
As it was already stated the law abiding citizen has never been the problem. It is the criminal who does not care about the law and will do as he or she pleases.
The governments of the world need to stop being so intrusive. Besides it is not about protecting the people. The reason they want more gun control is to prevent its people from overthrowing a bad regime.
The proof is all over the world. Just open your eyes and look.