Regulation 45 Retention of copies
(1)
A copy made of a record for which a search was authorised by a warrant may be retained for as long as is necessary in all the circumstances.
(2)
Without prejudice to the generality of paragraph (1), a copy made for the purposes of an investigation may be retained for use as evidence—
(a)
if the investigation is in relation to an offence, at a trial for the offence; and
(b)
if the investigation is in relation to an alleged or suspected failure to comply with a condition of authorisation, before the Tribunal in proceedings in relation to the failure.