Immigration Bill

My Lords, will the Minister clarify for my benefit a matter which concerns me? Does he agree that the writ of habeas corpus referred to by the noble Lord, Lord Ramsbotham, would not be of any use in the circumstances that we are discussing because the return to the writ would simply show that there was lawful authority for the detention? If that is right, does he agree that the right to liberty could be relied upon only by reference to the Human Rights Act and Article 5 of the European Convention on Human Rights, which would mean that any statutory provision that we approve would have to be read and given effect in accordance with the convention right to liberty?