17.—(1) Subject to the provisions of this regulation, the Scottish Ministers must determine the circumstances and manner in which a constable is to be compensated in respect of time—
(a)for which that constable remains on duty after that constable’s tour of duty ends;
(b)for which that constable is recalled between two tours of duty; or
(c)which forms part of a tour of duty which that constable is required to begin earlier than the rostered time without due notice and on a day when that constable has already completed that constable’s normal daily period of duty,
and such time is referred to in this regulation as “overtime”.
(2) For the purposes of this regulation—
“due notice” means notice given at least 8 hours before the revised starting time of the rostered tour of duty in question;
“normal daily period of duty” is construed in accordance with regulation 14;
“recall” does not include a warning to be in readiness for duty if required; and
“tour of duty”, in relation to a constable of the Police Service for whom variable shift or flexible working arrangements are in operation under regulation 14(1)(c), means rostered shift.
(3) In making a determination under paragraph (1), the Scottish Ministers may confer on the chief constable discretion to—
(a)fix the day on which a period commences for the purposes of the determination;
(b)fix the period within which time off in compensation for overtime is to be granted;
(c)allow time in addition to that specified in the determination to be taken into account in computing any period of overtime.