12. In rule 3.16—
(a)in paragraph (4), for “A copy of the petition”, substitute “Except in the case of a petition under rule 3.13, a copy of the petition”;
(b)for paragraph (5), substitute—
“(5) If the Attorney General has notified the court that he wishes to intervene in the proceedings, the proper officer shall send to him a copy of any answer and, in the case of a petition under rule 3.13, of the petition and every document accompanying it”; and
(c)in paragraph (7), for “necessary” substitute “desirable”, and after “does so consider” insert “and the Attorney General agrees to argue that question”.