353Securing evidential material without consent or warrant in emergency situation

353  Securing evidential material without consent or warrant in emergency situation  (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.