(1) The magistrate or tribunal member may order that the authorised officer who made an application under section 268CT may retain the thing if the magistrate or tribunal member is satisfied that it is necessary for the officer to do so:
(a) for the purposes of an investigation as to whether an offence has been committed; or
(b) to enable evidence of an offence to be secured for the purposes of a prosecution.
(2) The order must specify the period for which the officer may retain the thing.