Regulation 22, Annex E, Police Regulations and Determinations 2003 makes it quite clear that there is to be an interval between each of an officer’s rostered rest days not exceeding 7 days, unless in the case of a part-time member or a longer interval has been agreed between the member and the chief officer. In addition to this, a period of more than 7 days can be worked “owing to the exigencies of duty” (Annex E 3 f).