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Watch the moment Supreme Court judges announce 'Parliament has not been prorogued'
24 September 2019, 11:59
Lady Hale declared prorogation "void and of no effect" meaning MPs are now free to take their seats in Parliament.
The Supreme Court reached a unanimous decision on the suspension of Parliament, stating clearly "Parliament has not been prorogued."
With the court concluding the prime minister's advice to the Queen "unlawful, void and of no effect" there are now calls for Prime Minister Boris Johnson to resign.
Lady Hale told the court prorogation "was also void and of no effect."
She continued: "This means that when the royal commissioners walked into the house of lords, it was as if they had walked in with a blank sheet of paper.
"The prorogation was also void and of no effect.
"Parliament has not been prorogued. This is the unanimous judgement of all 11 justices."
She added that it was now for Parliament, and in particular the Speaker and Lord Speaker, to decide what to do next.
"Unless there is some parliamentary rule, of which we are unaware, they can take immediate steps to enable each house to meet as soon as possible," she said.
"It is not clear to us that any step is needed from the PM, but if it is, the court is pleased that his counsel have told the court that he will take all necessary steps to comply with the terms of any declaration made by this court."