The subject-matter of Part III of the Police Act 1997 which sets out the circumstances in which the police may be authorised to interfere with property in order to carry out surveillance and other types of investigative work is excepted from the reservation.  This is consistent with the exception of the subject-matter of Part III of the 1997 Act from the reservation of National Security, Interception of Communications, Official Secrets and Terrorism - see Section B8.
TABLE OF RESERVED MATTERS Head C: Trade and Industry Exception