As always, the hon. Gentleman raises some important points. I hope to reassure him on all of them. I remind him that much of the detail will be in the code of practice, which will be subject to the affirmative resolution procedure. There will be an opportunity to scrutinise the provision in detail. I agree that it repays such scrutiny.
The hon. Gentleman asked whether dual criminality would apply. I am not sure whether he was asking if it would apply sometimes or whether the principle was being asserted in the clause. The answer to both questions is no. There is no principle of dual criminality. There are circumstances in which it might apply and others in which it might not apply. I hope that is of some reassurance to him.