The UK's Supreme Court has ruled that Prime Minister Boris Johnson acted unlawfully when he advised the Queen to suspend Parliament. Here is the full text of the statement Lady Hale, the president of the court, gave.
We have before us two appeals, one from the High Court of England and Wales and one from the Inner House of the Court of Session in Scotland. It is important, once again, to emphasise that these cases are not about when and on what terms the United Kingdom is to leave the European Union. They are only about whether the advice given by the Prime Minister to Her Majesty the Queen on 27th or 28th August, that Parliament should be prorogued from a date between 9th and 12th September until 14th October, was lawful and the legal consequences if it was not. The question arises in circumstances which have never arisen before and are unlikely to arise again. It is a "one-off".
Briefly, the Scottish case was brought by a cross party group of 75 members of Parliament and a QC on 30th July because of their concern that Parliament might be prorogued to avoid further debate in the lead up to exit day on 31st October. On 15th August, Nikki da Costa, Director of Legislative Affairs at No 10, sent a memorandum to the Prime Minister, copied to seven people, civil servants and special advisers, recommending that his Parliamentary Private Secretary approach the Palace with a request for prorogation to begin within 9th to 12th September and for a Queen's Speech on 14th October. The Prime Minister ticked 'yes' to that recommendation.
On 27th or 28th August, in a telephone call, he formally advised Her Majesty to prorogue Parliament between those dates. On 28th August, Mr Jacob Rees-Mogg, Leader of the House of Commons and Lord President of the Privy Council, Mr Mark Harper, chief whip, and Baroness Evans of Bowes Park, Leader of the House of Lords, attended a meeting of the Privy Council held by the Queen at Balmoral Castle. An Order in Council was made that Parliament be prorogued between those dates and that the Lord Chancellor prepare and issue a commission for proroguing Parliament accordingly. A Cabinet meeting was held by conference call shortly after that in order to bring the rest of the Cabinet "up to speed" on the decisions which had been taken. That same day, the decision was made public and the Prime Minister sent a letter to all Members of Parliament explaining it. As soon as the decision was announced, Mrs Miller began the English proceedings challenging its lawfulness.
Parliament returned from the summer recess on 3rd September. The House of Commons voted to decide for themselves what business they would transact. The next day what became the European Union (Withdrawal) (No 2) Act passed all its stages in the Commons. It passed all its stages in the House of Lords on 6th September and received royal assent on 9th September. The object of that Act is to prevent the United Kingdom leaving the European Union without a withdrawal agreement on 31st October.
On 11th September, the High Court of England and Wales delivered judgment dismissing Mrs Miller's claim on the ground that the issue was not justiciable in a court of law. That same day, the Inner House of the Court of Session in Scotland announced its decision that the issue was justiciable, that it was motivated by the improper purpose of stymying Parliamentary scrutiny of the Government, and that it, and any prorogation which followed it, were unlawful and thus void and of no effect.
Mrs Miller's appeal against the English decision and the Advocate General's appeal against the Scottish decision were heard by this court from 17th to 19th September. Because of the importance of the case, we convened a panel of 11 Justices, the maximum number of serving Justices who are permitted to sit. This judgment is the unanimous judgment of all 11 Justices.
The first question is whether the lawfulness of the Prime Minister's advice to Her Majesty is justiciable. This Court holds that it is. The courts have exercised a supervisory jurisdiction over the lawfulness of acts of the Government for centuries. As long ago as 1611, the court held that "the King [who was then the government] hath no prerogative but that which the law of the land allows him". However, in considering prerogative powers, it is necessary to distinguish between two different questions. The first is whether a prerogative power exists and if so its extent. The second is whether the exercise of that power, within its limits, is open to legal challenge. This second question may depend upon what the power is all about: some powers are not amenable to judicial review while others are. However, there is no doubt that the courts have jurisdiction to decide upon the existence and limits of a prerogative power. All the parties to this case accept that. This Court has concluded that this case is about the limits of the power to advise Her Majesty to prorogue Parliament.
The second question, therefore, is what are the limits to that power? Two fundamental principles of our Constitution are relevant to deciding that question. The first is Parliamentary sovereignty - that Parliament can make laws which everyone must obey: this would be undermined if the executive could, through the use of the prerogative, prevent Parliament from exercising its power to make laws for as long as it pleased. The second fundamental principle is Parliamentary accountability: in the words of Lord Bingham, senior Law Lord, "the conduct of government by a Prime Minister and Cabinet collectively responsible and accountable to Parliament lies at the heart of Westminster democracy". The power to prorogue is limited by the constitutional principles with which it would otherwise conflict.
