A person shall not be in possession of or attempt to obtain possession of any of the drugs to which these Regulations apply unless—
(a) he or she is licensed to import or export the drug; or
(b) he or she is licensed or otherwise authorised to supply the drug; or
(c) he or she is otherwise licensed by the Governor General or authorised by these Regulations or by any authority granted by the Governor General to be in possession of the drug.