(1) This section applies if an authorised officer has entered premises under:
(a) Part 2 of the Regulatory Powers Act, as that Part applies in relation to this Act; or
(b) section 346 (monitoring certain premises without consent or a warrant).
(2) If the authorised officer reasonably suspects that:
(a) particular evidential material is in or on the premises; and
(b) it is necessary to secure the evidential material in order to prevent it from being concealed, lost or destroyed; and
(c) it is necessary to do so without the authority of an investigation warrant because the circumstances are serious and urgent;
the authorised officer may secure the evidential material if the authorised officer finds it there pending the obtaining of an investigation warrant to seize it.