I will, if I may, focus on the amendments that seek to remove the entirety of part 5 of the Bill, which is its most controversial part because of the remark by my right hon. Friend the Secretary of State for Northern Ireland that it would breach international law. That remark proved as incendiary in the other place as it did in Brussels, and I can well understand the consternation that greeted it at the other end of the corridor. However, we must remember that the purpose of the Bill, as the right hon. Member for East Antrim (Sammy Wilson) pointed out, is straightforwardly to ensure that trade can flow freely within the internal market of the United Kingdom.
The internal market is specifically preserved and protected by the Act of Union 1800. Equal access to the internal market is therefore a constitutional right of the people of Northern Ireland, as, in due course, will be parity of treatment in the future trade relationship with the European
Union. Pursuant to the Belfast-Good Friday agreement, that right should not be disturbed without the consent of the people of Northern Ireland. However, considerable difficulties arise under the terms of the withdrawal agreement and the Northern Ireland protocol. It became increasingly clear during the negotiations with the European Union that the EU was intent on using the provisions of the withdrawal agreement as leverage in the negotiations on the future relationship. Those provisions could disrupt UK state aid policy and cause considerable friction in trade between Northern Ireland and Great Britain.
Part 5 of the Bill, and the forthcoming Taxation (Post-Transition Period) Bill, therefore seek quite properly to neutralise that potentially detrimental effect. However, it must be remembered, as my hon. Friend the Member for Bromley and Chislehurst (Sir Robert Neill) pointed out, that the powers in part 5 do not come into effect until such time as the Secretary of State makes a commencement order, and that can happen only with the approval of this House.
The Government have a positive duty to safeguard the integrity of the UK’s internal market, and to take whatever action is lawful in order to do that. The Bill gives the Government the power to take necessary action to neutralise the abusive implementation by the European Union of the provisions of the withdrawal agreement, including the Northern Ireland protocol. Furthermore, the same provisions safeguard against the potential breach of the Belfast-Good Friday agreement by ensuring that the constitutional rights set out in article 6 of the Act of Union are not infringed.
There can be no doubt as to the constitutional propriety of Parliament enacting these provisions. Parliament is sovereign; that is the fundamental principle of the constitution of this country. Moreover, and importantly, it is a principle that is specifically reasserted in section 38 of the European Union (Withdrawal Agreement) Act 2020, the statute that brought the withdrawal agreement into domestic law, notwithstanding the direct effect provisions of the withdrawal agreement.
It is to be hoped that a free trade agreement will shortly be concluded. If it is, there will be no need to trigger the powers in part 5 of the Bill, but as my hon. Friend the Minister pointed out, this Bill acts as a safety net. It is therefore clearly in the national interest that these provisions be reinstated in the Bill, and I urge hon. Members to vote accordingly this evening.