An officer—
(a) who is an officer within the meaning of paragraph (e) of the definition of officer in section 85 and is working in a region, is subject to the directions relating to the security of locations in the region given by the Regional Manager of the region; and
(b) who is an officer within the meaning of paragraph (a), (b), (c) or (d) of the definition of officer in section 85 is working in a region, is subject to the directions of the Regional Manager of the region.