I entirely agree. I have used the analogy myself that this is a lifeboat that we hope we never have to launch. We hope the ship will never go down because we will reach a trade agreement, and we should reach a trade agreement because, as I said earlier in the House, there has never been a trade agreement that has begun with the two parties in complete identity of trade law, of tariffs and of regulation. It should be, if it was only about trade, an easy agreement to reach, but it is not just about trade. The main stumbling blocks are constitutional—the very constitutional issues that made me want to vote to leave the European Union in the first place.
There are those who have said that this Bill is outrageous and that it sets new precedents, but in fact it says only that, under certain circumstances, domestic law might have to be used to overrule treaty law. Is it revolutionary? Is it unprecedented? Well, on 12 February 2016, the German federal constitutional court said:
“Treaty overrides by national statutory law are permissible under”
the German constitution. It added:
“Under the system of the Basic Law, international treaties have the same rank as statutory federal law. Therefore, they can be superseded by later federal statutes that contradict them.”
That is merely the power that the United Kingdom Government are seeking to use as a contingency power, should they need it, yet nobody screams about the German Parliament being able to exercise an identical power.
In the short time that I have, I want to make a couple of comments about the value of free trade in the internal market to the Union itself. The 1707 articles of Union between England and Scotland, and those between Great Britain and Ireland in 1800, abolished all customs duties between the different parts of the United Kingdom. Free trade across the whole of the United Kingdom was not only integral to the development of the whole of the United Kingdom from the industrial revolution on, but it was particularly important to Scotland and Ireland, whose citizens could freely trade with the much bigger English market—something that exists today. That point was made very well by the right hon. Member for East Antrim (Sammy Wilson) earlier in this debate.
It is easy, given how successful it has been, to forget how important that single market is, and how easily it could be damaged and what the what the implications would be if it were interfered with or restricted. Of course, that is why the hon. Member for Glasgow North (Patrick Grady)—I am sorry that he has left his place—was unwilling to engage in debate with me last week when I asked what estimates had been made by the Scottish nationalists of the break-up of the UK internal market in terms of the Scottish economy. He said, “We will come and make those arguments in due course,” because they do not want to hear those arguments aired in front of the Scottish people at the present time.
The devolved legislatures were created after the UK joined the European Community and then the European Union. Because the single market rules apply to regional Governments and legislatures as well as central Governments of member states, there was no pressing need during our membership of the European Union for specific UK-based rules maintaining the UK internal market against fragmentation. Brexit changes all that, and that is why I believe that we should reject the Lords amendments tonight.
However, in supporting the Government, I just ask this one question: when did the Government’s legal advisers advise Ministers that the withdrawal Act indeed, by direct application, threatened the internal market of the United Kingdom? It was not something that I heard discussed at the time, but I would like to know the answer to that question, as would many of us who are supporting the Government tonight and who believe that what we are seeing is proportionate contingency
planning, fulfilling the duty of the maintenance of the UK internal market, the key part of the United Kingdom itself.