(1) The Secretary may cancel a temporary leave permit at any time before the end of a period of temporary leave.
(2) The cancellation of a temporary leave permit takes effect at the earlier of—
(a) the end of the day on which the child or young person permitted temporary leave is informed of the cancellation of the permit; or
(b) the time at which the child or young person returns to the place of custody from which the child or young person was released on leave.