(1) The Attorney - General may, on behalf of the Commonwealth, intervene in a proceeding resulting from an application referred to in subsection 486A(1).
(2) If the Attorney - General intervenes in such a proceeding, the High Court may make such orders as to costs against the Commonwealth as the court thinks fit.
(3) If the Attorney - General intervenes in such a proceeding, he or she is taken to be a party to the proceeding.