The right hon. Gentleman says that a Member agreeing not to come in is the same as banning a Member from coming in. That is clearly not true.

It would not take very long to turn this motion into legislation, and that would be the proper constitutional way of doing this.

The proposal is, to my mind, entirely ineffective. We know that the powers of arrest of the Serjeant at Arms are pretty much phantasmagorical. I am sorry to embarrass the great Serjeant, who is sitting in his place. He is a most distinguished figure, but the idea that he could turn up and arrest somebody for failing to appear at a Select Committee is pretty much theatre rather than an effective threat. Our ancient powers of imprisoning are no longer there, so what happens when this person, excluded by a small cabal, decides to turn up? What are we going to do? We will have a vote of the whole House to expel him—the proper process in the first place.