(1) This section applies to the prosecution of a person for an offence against chapter 4 (Offences relating to regulated substances) or chapter 5 (Offences relating to regulated therapeutic goods) if, to prove the offence, it is necessary to prove that at a particular time the person was not authorised to deal with a regulated substance or therapeutic good in a particular way.
(2) Without evidence to the contrary, the person is taken not to have been authorised under a Commonwealth or State law to deal with the regulated substance or regulated therapeutic good in that way at the particular time.
(3) To remove any doubt, a reference in subsection (2) to a State law does not include a territory law.