(1) An application for a variation of the conditions of a therapeutic treatment order or a therapeutic treatment (placement) order may be made to the Court by—
(a) the Secretary; or
(b) the child in respect of whom the order is made; or
(2) An applicant under sub-section (1) must serve a copy of the application on each other person who may make an application under this section in respect of the order a reasonable time before the hearing of the application.
(3) On an application under sub-section (1) the Court may vary any of the conditions included in the order or add or substitute a condition but must not—
(a) in the case of a therapeutic treatment order, make a change in the requirement to participate in a therapeutic program or extend the period of the order; and
(b) in the case of a therapeutic treatment (placement) order, make any change in custody or extend the period of the order.