I hear lots of cheering. That was the argument with respect to the Australian system, but the real deterrent effect of the Australian system was the pushback. The fact is that nobody got to Australia. That was the main effect.
In the past, we have had an argument within our own party about the hostile environment. Remember the hostile environment policy that we lived with for a long time? It did not work. We tried it and it brought our reputation down, so thank you for that. My hon. Friend is right to talk about the pull effect and the deterrent effect. They are all important, but we have to do this in such a way that we can stand by and be proud of it at the end of the policy. That is why I am saying to the House now: this is what it will look like, come the day, and it is not something that I will be proud of. For that reason, I urge the House to support my amendments.