“High security psychiatric service” and “hospital premises” are defined in subsection (8)
49.Subsection (6) makes equivalent provision for the state hospitals in Scotland.
"state hospital" is defined in subsection (18)
Section 5: Interception with a warrant
50.This section allows for interception to be carried out when an interception warrant has been issued by the Secretary of State and sets out the grounds on which a warrant may be issued.