9 Supply of explosives to minors
(1) Subject to subsection (2), a person must not sell or otherwise supply any explosive to a person who is under the age of 18 years (a minor).Maximum penalty: 50 penalty units.
(2) A person is not guilty of an offence under this section if the person satisfies the court that:(a) the person believed on reasonable grounds that the minor concerned had attained the age of 18 years, or(b) the minor concerned purchased or otherwise received the explosive in the course of the minor’s employment.

Section 9