Sir Julian Lewis: I entirely agree with what the Justice Secretary says about the dangers of deception. It is also concerning to note that people are now trying to use a mental health argument to get out of separation centres, given that anyone who holds a fanatical Islamist, Nazi or revolutionary view from some other doctrine has, by definition, a mental health question mark over their personality. I appreciate that he may have to write to me afterwards, but can he indicate what proportion of people imprisoned for terrorist offences related to Islamism are in separation centres, and what proportion are in the rest of the prison estate? What is known about the number of other people who have been radicalised by Islamist extremist prisoners in those parts of the prison estate that are not separated out like the units with which he is primarily concerned today?

[The Lord Chancellor and Secretary of State for Justice (Mr David Lammy): I am happy to write to the right hon. Gentleman with the detail, because it is a very good question. There are 254 prisoners in custody for terrorism or terrorism-related offences, 60% of whom have an Islamic ideology, and all the prisoners in our separation centres come from that cohort. He will recognise that that is a tiny proportion of the rising population in prison who say they are of the Muslim faith. It is important to emphasise that. However, radicalisation is a bigger thematic area than just the work of those extremists in separation centres – he is absolutely right – and we have to continue bearing down on it. I have discussed this in Committee stages of Bills under the previous Government. It remains a long-standing issue and will continue to be, I suspect, for decades to come.]