(1) Where a probation order, whether as originally made or as amended requires the probationer to reside in an institution otherwise than for the purpose of submitting to treatment for his or her mental condition as a voluntary or resident patient for a period exceeding 6 months from the date of the order as originally made or of the amended order, as the case may be, the probation officer shall, as soon as may be after the expiration of the 6 months, report on the case to the supervising Court.
(2) On receipt of any such report, the supervising Court shall review the probation order for the purpose of considering whether to cancel the condition as to residence or reduce the period thereof, and may, if it thinks fit, amend the order accordingly without the necessity of any application in that behalf.