(1)This section applies to any item seized under section 43.
(2)The item may be retained so long as is necessary in all the circumstances and in particular—
(a)for use as evidence at a trial for an offence under this Act, or
(b)for forensic examination or for investigation in connection with an offence under this Act.
(3)No item may be retained for either of the purposes mentioned in subsection (2) if a photograph or a copy would be sufficient for that purpose.