Let me deal with the issues that have been raised by Diana Johnson and Keith Vaz. The hon. Lady spoke on behalf of the Opposition, and I thank her for their support, as I thank the Chairman of the Home Affairs Committee for his support. This is always a difficult area, because as the hon. Lady said, there are things that the Government know which they are not able to share publicly. I am grateful for what she and the Chairman of the Select Committee said about my right hon. Friend the Home Secretary.

Proscription is a tough but necessary power. Its effect is that a listed organisation is outlawed and is unable to operate in the UK. It makes it a criminal offence for a person to belong to that proscribed organisation, to invite support for it, to arrange a meeting in support of it or to wear clothing or carry articles in public which arouse reasonable suspicion that an individual is a member of that organisation. Proscribing Ansaru will also enable the police to carry out disruptive action against any of its supporters in the UK and—picking up the point made by the Chairman of the Select Committee—ensure that it cannot operate effectively in the United Kingdom.

The right hon. Gentleman mentioned de-proscription. Anyone who is proscribed can apply to the Home Secretary to be de-proscribed. If that application is refused, the applicant can appeal to the Proscribed Organisations Appeal Commission, a special tribunal which is able to consider the sensitive material that underpins proscription decisions.

The Chairman of the Select Committee also mentioned the report that David Anderson, QC, has recently produced and also the Select Committee’s report. The Government have carefully noted the comments that David Anderson made in his report about the de-proscription process and the Home Secretary will respond shortly to the report, so the right hon. Gentleman may not have too long to wait to find out what the Government’s view is.