206.In the case of a police force, NCIS and the National Crime Squad, subsection (3) restricts an authorisation for intrusive surveillance involving residential premises to being granted only where the premises are within the area of operation of that force, Service or Squad. The areas of operations are set out in subsection (6). For the three service police forces, this is defined in subsection (7), in terms of the persons who are subject to "service discipline".
Intrusive Surveillance Section 33:  Rules for grant of authorisations