(1) The superintendent of a detention centre has the powers that are necessary or convenient for the performance of his or her functions.
(2) The superintendent has power to approve the participation of a detainee in programs conducted in accordance with section 151 in place of consent by a parent or responsible adult in respect of the detainee.
(3) The powers and functions of the superintendent of a detention centre in relation to a detainee are not altered or diminished by the fact that the detainee may be outside the precincts of, or absent from, the detention centre.