asked Her Majesty's Government:

Whether (a) road blocks, and (b) warning signs qualify as obstacles for the protection of a site for the purposes of defining an outer perimeter for sites designated or protected under the Serious Organised Crime and Police Act 2005. [HL570]

Sections 128 to 131 of the Serious Organised Crime and Police Act 2005 do not specify how the outer perimeter of protected sites should be defined. In the majority of cases, it is likely that the perimeter would be based on the existing physical boundary of the site which could be comprised of security fencing, walls, hedgerows or buildings. In all cases, a key consideration would be to ensure, through appropriate means, that the boundary of the protected site was permanent, continuous and clear to members of the public.

asked Her Majesty's Government:

Whether it is an offence to trespass on sites designated under Sections 128 to 138 of the Serious Organised Crime and Police Act 2005 when the site is (a) under construction; (b) inactive; or (c) being decommissioned. [HL571]

Under Sections 128 and 138 of the Serious Organised Crime and Police Act 2005 it is a criminal offence to trespass on any protected site. A protected site is either a licensed nuclear site or a site designated in an order by a Secretary of State under Sections 128(3) or 129(3). It is not an offence to trespass in the area around Parliament designated under Section 138, but it is an offence to demonstrate in this area without authorisation from the Commissioner of the Metropolitan Police.