(1) The chief officer of a law enforcement agency must cause—
(a) every record or report obtained by use of a surveillance device by a law enforcement officer of the agency under a warrant, emergency authorisation, corresponding warrant or corresponding emergency authorisation to be kept in a secure place that is not accessible to people who are not entitled to deal with the record or report; and
(b) any record or report mentioned in paragraph (a) to be destroyed, if satisfied that it is not likely to be required in connection with a purpose mentioned in section 34 (6) or (7).
(2) Subsection (1) does not apply to a record or report that is received into evidence in legal proceedings or disciplinary proceedings.