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Brexit Supreme Court Decision on Article 50 Vote

Published: 24/01/2017 by Comments

Brexit Supreme Court Decision on Article 50 Vote

Theresa May must consult Parliament to be able to trigger Article 50, the Supreme Court has said in a ruling.  Constitutional arrangements in the UK make it clear that changes on such a scale must be clearly authorised by Parliament.

Below is an overview summary of the ruling:
Article 50 of the Treaty on the European Union provides, in summary terms, that, if a member state decides to withdraw from the European Union (“the EU”) ‘in accordance with its own constitutional requirements’, it should serve a notice of that intention (“a Notice”), and that the treaties which govern the EU (“the EU Treaties”) “shall cease to apply” to that member state within two years thereafter. Following the June 2016 referendum, the Government proposes to use its prerogative powers to withdraw from the EU by serving a Notice withdrawing the UK from the EU Treaties.

The principal issue in these appeals is whether such a Notice can, under the UK’s constitutional arrangements, lawfully be given by Government ministers without prior authorisation by an Act of Parliament. References from Northern Ireland, and interventions by the Lord Advocate for the Scottish Government and the Counsel General for Wales for the Welsh Government, raise the additional issues of whether the terms on which powers have been statutorily devolved require consultation with or the agreement of the devolved legislatures before Notice is served, or otherwise operate to restrict the Government’s power to do so (‘the devolution issues’).

The UK’s constitutional requirements are a matter of domestic law which the parties all agree should be determined by UK judges. The issues in these proceedings have nothing to do with political issues such as the merits of the decision to withdraw, the timetable and terms of so doing, or the details of any future relationship between the UK and the EU.

The claimants submit that, owing to the well-established rule that prerogative powers may not extend to acts which result in a change to UK domestic law, and withdrawal from the EU Treaties would change domestic law, the Government cannot serve a Notice unless first authorised to do so by an Act of Parliament. Resolution of this dispute depends on the proper interpretation of the European Communities Act 1972 (‘the ECA’), which gave domestic effect to the UK’s obligations under the then existing EU Treaties, together with subsequent statutes, which gave effect to and related to later EU Treaties, and the European Union Referendum Act 2015.

The devolution issues need the court to consider whether the terms of the Northern Ireland Act 1998 (‘NIA’), and associated agreements, require primary legislation, and the consent of the Northern Ireland Assembly and/or the people of Northern Ireland, before a Notice can be served. Under each of the devolution settlements in Northern Ireland, Scotland and Wales the devolved legislatures have responsibilities to comply with EU law, and there is a convention (‘the Sewel Convention’) that the UK Parliament will not normally exercise its right to legislate with regard to devolved matters without the agreement of the devolved legislature.

The main issue was raised during proceedings brought by Gina Miller and Deir Dos Santos against the Secretary of State for Exiting the European Union. The Divisional Court of England and Wales (Lord Thomas LCJ, Sir Terence Etherton MR and Sales LJ), announced that the Secretary of State was without power to give Notice, in the absence of Parliament’s prior authority. The Secretary of State has appealed to the Supreme Court against this decision. The Northern Ireland claims were heard together by Maguire J in the Northern Ireland High Court, who determined and dismissed the devolution issues, and, on an application by the Attorney General for Northern Ireland Maguire J referred four issues to the Supreme Court and the Northern Ireland Court of Appeal referred one further issue.

The Supreme Court by a majority of 8 to 3 dismisses the Secretary of State’s appeal (Lord Neuberger, Lady Hale, Lord Mance, Lord Kerr, Lord Clarke, Lord Wilson, Lord Sumption and Lord Hodge in the majority with Lord Reed, Lord Carnwath and Lord Hughes dissenting). In a joint judgment of the majority, the Supreme Court maintains that an Act of Parliament is necessary to authorise ministers to give Notice of the decision of the UK to withdraw from the European Union. Each justice produces a separate judgment.

Regarding the issue of devolution, the court unanimously summed up that neither section 1 nor section 75 of the NIA assists in this case, and that the Sewel Convention does not amount to a legally enforceable obligation.

Colette Lamb
News article by:
Colette Lamb

A business sector writer with over 15 years of experience working in the marketing, commerce and law sectors' internationally and in the UK. Interests include composing music and other creative communications such as art and dance therapy.

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