An identification test that an authorised officer carries out under section 257A:
(a) must be carried out in circumstances affording reasonable privacy to the person; and
(b) must not be carried out in the presence or view of a person whose presence is not necessary for the purposes of the identification test or required or permitted by another provision of this Act; and
(c) must not involve the removal of more clothing than is necessary for carrying out the test; and
(d) must not involve more visual inspection than is necessary for carrying out the test.