86   Intervention by Minister or Director-General

(1)  This section applies to proceedings brought before a court or tribunal under this Act or any other legislation administered by the Minister.

(2)  The Minister may, at any stage of proceedings to which this section applies, intervene in the proceedings.

(3)  The Director-General may, at any stage of proceedings to which this section applies, intervene in the proceedings but only if the Director-General is of the opinion that it would be in the public interest to do so.

(4)  The Director-General must intervene in proceedings to which this section applies if directed to do so by the Minister.

(5)  If the Minister or Director-General intervenes in proceedings, he or she:

(a)  becomes a party to the proceedings, and

(b)  has all the rights, including rights of appeal, of a party to the proceedings.