Boris Johnson's decision to suspend Parliament for five weeks ahead of Brexit was 'unlawful', Scotland's highest civil court has ruled.

The UK Government will now appeal the decision at the UK Supreme Court for a definitive ruling.

The legal bid against the prorogue of parliament was brought at the Court of Session in Edinburgh.

A cross-party group of more than 70 MPs and peers, led by SNP MP Joanna Cherry QC, had asked the Court of Session in Edinburgh to rule the Prime Minister exceded his powers when he asked the Queen to propogue parliament on August 28. 

They appealed to the court's Inner House after Lord Doherty initially insisted the move was "political territory" and could not be measured against legal standards. 

A panel of three appeal judges — including the Lord President, Lord Carloway, Scotland's most senior judge — have now backed the campaigners' case. 

Following the decision, Ms Cherry tweeted: "Huge thanks to all our supporters & our fantastic legal team who have achieved the historic ruling that #prorogation is #unlawful #Cherrycase #Brexit #StopTheCoup".

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