The Attorney - General must, by written notice in the statutory form, direct a magistrate to cancel a warrant if the person has not been arrested under the warrant and:
(a) the Attorney - General is satisfied that a request from a Tribunal that would oblige the Attorney - General to issue a notice under section 9 in relation to the person will not be received; or
(b) the Attorney - General considers for any other reason that the warrant should be cancelled.