The experience of the constituent of the hon. Member for Foyle (Mark Durkan), which I was interested to learn about, illustrates the difficulty that faces us. I do not suppose that anybody in the House—certainly not the Home Secretary or the Minister—wants to do anything that makes it more difficult to catch terrorists and others who wish to do us, our allies and our citizens harm. None the less, in our enthusiasm to deal with the problem, we need to come up with the best answer, and in my view the best answer includes much greater judicial oversight than is currently in the Bill.
I share the great honour, with my hon. Friend the Member for Stone (Sir William Cash), of being a former shadow Attorney-General. In fact, I was shadow Attorney-General twice, although I do not know whether that makes my arguments twice as good or half as good—I do not imagine it is of any relevance whatsoever. However, I think we need to extract from the Government a little movement. I hope that the Minister, in his response, can reassure me on this matter. I do not mind whether that movement comes in this House or the other place. I do not share the objections of my hon. Friend the Member for Cities of London and Westminster (Mark Field) to altering the Bill in the House of Lords. We are a bicameral Parliament, and if the Lords can come up with an answer that is politically acceptable, elegant and efficacious, let them do it. If it satisfies me and the Government, I am all for it.