The Supreme Court hearing into whether the suspension of Parliament was lawful sat for the third and final time on Thursday. Representatives from Scotland, Wales and Northern Ireland were heard by the justices. Former Conservative Prime Minister Sir John Major also made an intervention.
In a written submission to the court, Sir John – who was represented by his barrister – warned that if the judges do not rule against the Government, nothing could prevent a future Prime Minister from using prorogation "in any circumstances" – including to scrap the Army if they wished to.
The Supreme Court heard appeals on two different rulings from courts in England and Scotland over the parliamentary shutdown.
The High Court in London said the issue is not a matter for the courts - but the Court of Session in Edinburgh found that the Prime Minister’s advice to the Queen to prorogue parliament was unlawful, following a case brought by 75 MPs.
The judges are expected to deliver their ruling early next week.
The Labour Party also suspended Parliament in the late Forties (Image: EXPRESS.CO.UK / GETTY)
The judges are expected to deliver their ruling early next week (Image: GETTY)
In an interview with Express.co.uk, famed constitutional historian David Starkey hit out against the Labour Party, who used prorogation in a much more “extreme case” than Mr Johnson in the late Forties.
Mr Starkey said: “A much more extreme example, baring in mind the current attitude of the Labour Party, is Clement Attlee.
“Clement Attlee used prorogation to drive the coach and horses through the House of Lords, what was was then called the Parliament Act 1911.
“The Act specifies the House of Lords can only block legislation of the House of Commons across one or two sessions, right?
“In other words, if it blocks it, it will then come back in another session.
“If again the House of Commons rules one way and the House of Lords another, the Commons override them.
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Prime Minister Boris Johnson (Image: GETTY)