We would all agree with the principle that the noble Baroness has just advanced—we shall adduce it when trying to remove some other bits from the Bill later today. However, she seems to be advancing the proposition that it is for a Minister to say that something is not part of the law, because of something that the Minister judges makes it invalid. The constitution has never given that role to Ministers.
Courts decide what the law is if the matter is in doubt, not Ministers. To say to the people at the National Archives, whom I visited on one occasion—a small and diligent group huddled over computer screens which have replaced scissors and paste—“Do not print it”, is not an answer to a question of doubt about the law.