(1) If a non - citizen in questioning detention who is not released before the end of the 4 hours for which he or she may be detained is given an invitation under paragraph 119(1)(b) or 120(2)(c), the period within which he or she may respond to the invitation is to end when, or before, those 4 hours end.
(2) If a non - citizen who has been given an invitation under
paragraph 119(1)(b) or 120(2)(c) (whether in immigration clearance or
otherwise) is taken into questioning detention and not released before the end
of the 4 hours for which he or she may be detained, the period within which he
or she is to respond to the invitation is to end when, or before, those 4
hours end.