5.04.1 If the Attorney - General of the Commonwealth, of a State, of the Australian Capital Territory or of the Northern Territory intends to intervene in a proceeding before the Court under section 78A of the Judiciary Act 1903 , the Attorney - General must, before taking any step in the proceeding:
(a) file a notice of intervention; and
(b) serve a copy of the notice on each party and any other intervener.
5.04.2 The notice of intervention must be in Form 1A.