Sir Julian Lewis: Has the Intelligence and Security Committee had an opportunity to question the National Security Adviser [Jonathan Powell] – not the deputy [Matthew Collins] – about this matter? If the Minister says that he does not know, then he is the wrong Minister to be answering this urgent question. If he says that he does know, but he cannot say because that information is highly classified, let me assure him that the identities of witnesses interviewed at that level by the Intelligence and Security Committee are not private, but published whenever the Committee is minded to do so. Will he answer the question in a straightforward way: was the ISC given the opportunity to question the National Security Adviser?

[The Minister for Housing and Planning (Matthew Pennycook): It is for the ISC, not me, to comment on its proceedings. I can tell the right hon. Gentleman that national security is the first duty of Government. It is not appropriate for me in this instance to comment on any specific matters of national security, but as I continue to repeat, all relevant planning considerations will be taken into account when making a decision on this case.]