Terrorism Prevention and Investigation Measures Bill

I am interested in my hon. Friend's answer. Does she not think that we should move in the direction of using criminal law in all cases, rather than going down this endless route of special legislation? I have been in this House long enough to have voted against most of these pieces of legislation, starting with the renewal of the Prevention of Terrorism (Temporary Provisions) Act 1974. I did so because it departed from the criminal law and essentially involved the executive powers of Ministers, which I am sure she will agree is a dangerous thing.