Mr Johnson suspended – or prorogued – Parliament for five weeks earlier this month, saying it was to allow a Queen’s Speech to outline his new policies.
But the court said it was wrong to stop Parliament carrying out its duties in the run-up to the Brexit deadline on 31 October.
Downing Street said it was “currently processing the verdict”.
Delivering its conclusions, the Supreme Court’s president, Lady Hale, said: “The effect on the fundamentals of our democracy was extreme.”
She added: “The decision to advise Her Majesty to prorogue Parliament was unlawful because it had the effect of frustrating or preventing the ability of Parliament to carry out its constitutional functions without reasonable justification.”
Lady Hale said the unanimous decision of the 11 justices was that Parliament had not been prorogued – the decision was null and of no effect – and it was for the Speakers of the Commons and Lords to decide what to do next.
Commons Speaker John Bercow welcomed the ruling and said Parliament “must convene without delay”, adding that he would now consult party leaders “as a matter of urgency”.
The ruling was made after a three-day hearing at the Supreme Court last week which dealt with two appeals – one from campaigner and businesswoman Gina Miller, the second from the government.
Mrs Miller was appealing against the English High Court’s decision that the prorogation was “purely political” and not a matter for the courts.
The government was appealing against the ruling by Scotland’s Court of Session that the prorogation was “unlawful” and had been used to “stymie” Parliament.
The court ruled in favour of Mrs Miller’s appeal and against the government’s.
Speaking outside the court, Mrs Miller said the ruling “speaks volumes”.
She added: “This prime minister must open the doors of Parliament tomorrow. MPs must get back and be brave and bold in holding this unscrupulous government to account.”
An Entrepreneur, Corporate Communications Executive and Philanthropist. Editor-in-Chief of www.233times.com. A Senior Journalist with Ghanaian Chronicle Newspaper. An alumnus of Adisadel College where he read General Arts. He holds first degree in Bachelor of Arts from the University of Ghana; Political Science (major) and History (minor). In 2015, he won a £35,000 postgraduate scholarship to study MSc Corporate Social Responsibility (CSR) and Energy with Public Relations (PR) at the Robert Gordon University in the United Kingdom. He is a 2018 Mandela Washington Fellow who studied at Clark Atlanta University in USA on the Business and Entrepreneurship track. His mentors are Rupert Murdoch, Warren Buffet, Sam Jonah, Kwaku Sakyi Addo and Piers Morganview all posts by: Nana Kwesi Coomson
233times.com is a Ghanaian media house which serves as a major source of exclusive interviews ,music and video downloads, news and more.
233times.com reports on major events,news covering entertainment, politics, sports, etc from within Ghana, Africa and beyond.
We have a platform for the amateur artistes to portray their staggering talents ...more...
To advertise with us or make enquiries, please visit 233times.com/advertise or call +233266121799 (Selorm), +233248185848 (Nana Kwesi)