(1) Without limiting section 191 or section 44 of the Civil and Administrative Tribunal Act 2013 , the Secretary may, if he or she is of the opinion that it would be in the public interest to do so, intervene in any proceedings arising under this Act.
(2) The Secretary must intervene in such proceedings if directed to do so by the Minister.
(3) On intervening in any proceedings, the Secretary--(a) becomes a party to the proceedings and has all the rights of such a party, and(b) has a right to be heard personally or by an Australian legal practitioner or agent.