(1) For an application for a section 79E order--
(a) the applicant must, if required by the court, attend as a witness; and
(b) other persons may be called as witnesses;
to give evidence in relation to all matters relevant to the application and may be cross-examined in relation to the evidence.
(2) The commissioner may--
(a) appear and be heard at the hearing of the application; and
(b) give or produce evidence at the hearing for or against the making of the order; and
(c) examine and cross-examine witnesses called to give evidence at the hearing.