(1)  A person must not, either intentionally or recklessly, deface or alter any number, letter or identification mark on any firearm or firearm part.

Penalty:  Fine not exceeding 100 penalty units or imprisonment for a term not exceeding 3 years, or both.

(2)  A person must not possess any firearm, or firearm part, on which any number, letter or identification mark has been defaced or altered.

Penalty:  Fine not exceeding 100 penalty units or imprisonment for a term not exceeding 3 years, or both.

(3)  If, at any time, a number, letter or identification mark on a firearm is defaced or altered, the firearm is –

(a) if it was registered at that time, automatically de-registered but may be re-registered if the Commissioner considers it appropriate; or

(b) if it was not registered at that time, incapable of being registered.