Actually, a significant percentage of Australians were already made instant-criminals when they very suddenly passed that big anti-gun law over there given that most of them didn't have much opportunity to turn in their guns.
Actually, there was an amnesty that lasted
one year in which they could turn in their guns at the nearest police station. No-one was made 'instant-criminals' and I'd say they had plenty of opportunity to hand in their guns. Then again, you being an American would probably know more about that than an Australian would.
