Sir Julian Lewis: When severe mental illness strikes, it can be devastating and totally debilitating, but the problem from the Department’s point of view is that its symptoms are invisible. There have been reports of people faking mental illness in order to gain benefits. Is the right hon. Gentleman satisfied that his Department has appropriate checks in place?

[The Minister for Social Security and Disability (Sir Stephen Timms): Yes, appropriate checks are in place. As I have just mentioned, we are undertaking a review of the PIP assessment, and we will need to look carefully, together with disabled people, at the way in which those decisions and judgments are made.]