(a) a firearm, ammunition for a firearm, a weapon
or an explosive, or
(b) a substance or thing that, because of its nature or
condition, could endanger the safety of an aircraft or vessel or persons on
board an aircraft or vessel.
(b) knowing that an article is a dangerous article, delivers the article to a
person for the purpose of having the article placed or carried on board an
aircraft or vessel, or
(a) does not apply to or in
relation to anything done with an article in relation to an aircraft or vessel
with the consent of the owner or operator of the aircraft or vessel where that
consent is given with a knowledge of the nature or condition of the article,
and
(b) does not apply to or in relation to the carrying or placing of a
firearm or ammunition for a firearm on board an aircraft or vessel with
permission given in accordance with regulations in force under the
Air Navigation Act 1920 of the Commonwealth.