asked Her Majesty's Government:
When designating a site under Section 128(3)(c) of the Serious Organised Crime and Police Act 2005, what criteria they use to assess whether the level of threat to national security is sufficient to justify designation. [HL1743]
National security is not defined in law. To do so would hinder flexibility in dealing with new and emerging threats. It is recognised by domestic and European courts that, within a wide margin of discretion, it is for the Secretary of State to decide matters of national security.