62.—(1) A person who enters or is in any building or part of a building as a trespasser while he has a firearm or imitation firearm with him shall be guilty of an offence unless he shows that he had lawful authority or reasonable excuse for doing so.
(2) A person who enters or is on any land as a trespasser while he has a firearm or imitation firearm with him shall be guilty of an offence unless he shows that he had lawful authority or reasonable excuse for doing so.