Part 1: Espionage, sabotage and persons acting for foreign powers Espionage etc Section 8: Power to declare additional sites as prohibited places
This section provides that the Secretary of State may declare additional sites as prohibited places by way of secondary legislation. This ensures that additional sites that are vulnerable to state threat activity can be designated where considered necessary in the future.
	Subsection (2) provides the test that must be met in order for land, buildings, or vehicles to be designated as prohibited places. This requires that the Secretary of State reasonably considers that the designation is necessary to protect the safety or interests of the United Kingdom. Subsection (3) provides the matters to which the Secretary of State must have regard as part of that decision; namely, the purpose for which the land or building or vehicle is used, the nature of any information held, stored, or processed on the land or in the building or vehicle, and the nature of any technology, equipment or material that is located on the land or in the building or vehicle.
	Subsections (4) and (5) provide that the power can be exercised in relation to part of a building and to descriptions of land, buildings or vehicles, not just particular land, buildings, or vehicles. Designating a type of place by a description (e.g. Crown land used for defence purposes), rather than listing each particular place individually, means that all sites under that type can be designated as prohibited places under one clear definition. In some cases, this may be more practical than listing many places individually and will ensure that the most sensitive sites are not publicly listed.