Sch 8 para 2
(1) An inspector's instrument of appointment may authorise the inspector to exercise any relevant power. (2) Authority to exercise a relevant power may be given— (a) without restriction, or (b) only to a limited extent or for limited purposes. (3) The authority conferred by an inspector's instrument of appointment to exercise any relevant powers may be varied by the ONR by a further instrument in writing varying the instrument of appointment. (4) For the purposes of this Schedule, an inspector is “ authorised ”, in relation to a power, if and so far as the inspector is authorised by the instrument of appointment to exercise the power. (5) In this Part, “ relevant power ” means a power conferred by any of the relevant statutory provisions on an inspector if and so far as so authorised. (6) When exercising or seeking to exercise any relevant power, an inspector must, if asked, produce the instrument of appointment (including any instrument varying it) or a duly authenticated copy.