Authorised persons may be assisted by other persons
(1) An authorised person may be assisted by other persons in exercising powers or performing functions or duties under this Part, if:
(a) that assistance is necessary and reasonable; and
(b) another Act empowers the authorised person to be assisted.
A person giving such assistance is a person assisting the authorised person.
Powers, functions and duties of a person assisting
(2) A person assisting the authorised person:
(a) may enter the premises; and
(b) may exercise powers under this Part in relation to evidential material; and
(c) may exercise powers and perform functions and duties under this Part that are incidental to the powers mentioned in paragraph (b); and
(d) must do so in accordance with a direction given to the person assisting by the authorised person.
(3) A power exercised by a person assisting the authorised person as mentioned in subsection (2) is taken for all purposes to have been exercised by the authorised person.
(4) A function or duty performed by a person assisting the authorised person as mentioned in subsection (2) is taken for all purposes to have been performed by the authorised person.
(5) If a direction is given under paragraph (2)(d) in writing, the direction is not a legislative instrument.