“The powersand duties of the Surveillance Commissioners in scrutinising and deciding whether to approve authorisations under PA97 (property interference) and under RIPA and RIP(S)A (intrusive surveillance) have been explained in earlier reports and are publicly available on our website. For reasons explained later in this report, necessary legislation is not yet implemented to enable the Commissioners to give prior approval to some authorisations relating to a law enforcement Covert Human Intelligence Source (CHIS–commonly termed an undercover officer). My Inspectors continue to scrutinise the authorisation of any such undercover officer who has been authorised for an uninterrupted period exceeding 12 months.”