s 18 Identification cards and equipment
18.—(1) The Authority must issue to each authorised officer an identification card. (2) Every authorised officer whose appointment as such ceases must return to the Authority any identification card issued to him or her under subsection (1). (3) An authorised officer must produce his or her identification card for inspection —(a) before exercising a power under this Act; and (b) at any time during the exercise of a power under this Act, if asked to do so. (4) Every authorised officer is to be issued with such equipment, or such description of equipment, as the Authority may determine to be necessary for the effectual discharge of the duties of an authorised officer.