I'm Australian, I grew up with guns, just not assault rifles and people walking around packing in public.
I didn;t agree with the gun buyback, or some of the current laws. But any non felon in Oz can buy a pistol or rifle/shotgun if they want one, they just have to have a valid reason, sport or agricultural use.
Self defense is not a valid reason.
And at all times, it must be stored in an approved way, unloaded and locked.
Police have the right for no notice inspections and make them.
Failing an inspection, gun loaded, not secured by an approved method, is a felony.