I understand that point. However, under the Good Friday agreement—the Belfast agreement—we are bound and obligated, including with the approval by treaty of the European Union, as the noble Lord, Lord Purvis, said, to agree things with Dublin. That is the way it works. That is part of the Good Friday agreement that has the blessing of the European Union.
I repeat that we have no idea as yet of our future trading relationships with anybody, including across the Irish border—no idea at all. This amendment spells out the principles that have already been accepted in the withdrawal Act, and agreed in statute by the Government. I therefore wish to test the opinion of the House.