If the right hon. Gentleman looks back, he will see that in the latter part of the past decade in the wake of the London bombings, our security services did a fine job of intercepting a number of terror plots. In that time, a number of people received 10-year jail sentences, which is the maximum available to the courts. On at least one occasion, the judge bemoaned his inability to provide a longer jail sentence
because of the risk he believed the individual posed to the public. Happily, there are not large numbers of such cases. I think we would all agree that we do not want to see more of them. I hope that the provision will not be used very often, but it needs to be there in case it is necessary.