THE key legal brain behind a Scottish court bid to block Boris Johnson's bid to suspend parliament has called the prime minister a "charlatan" who has just mounted a coup.

A group of parliamentarians including Liberal Democrat leader Jo Swinson initially launched a legal action at the Court of Session in Edinburgh last month.

They are now seeking an interim interdict that would prevent parliament being suspended until the case has a full hearing on September 6.

The court is expected to consider their motion on Thursday or Friday.

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The legal move came in advance of the Queen agreeing to the prime minister's request to suspend Parliament on September 10 - just a week after MPs return to the Commons following the summer recess.

The Herald:

Jo Maugham QC of the Good Law Project who is supporting the legal bid said: "We believe Parliament can be unsuspended - and will be asking the Court of Session to do exactly that either tomorrow or on Friday."

He later described Boris Johnson as a "charlatan" stating that "never before has a Prime Minister suspended parliament in an attempt to seek to thwart the Commons.

"And the purpose of the suspension is key. It asks a question - to which there is no good answer - of what mandate a Prime Minister (let alone one who has never faced the country in a General Election) has to seek to impose his or her will over that of Parliament.

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"In every coup - a word I use to mean the usurpation of power by someone who has no entitlement to wield it - there will be those telling the public, 'don't worry, this is fine and normal'. Well, do worry, because this is a coup.

"The Charlatan has no mandate to make a choice as to the form, if any, that Brexit takes. He has suspended Parliament to try and usurp a choice which properly is its. That is a coup."

Mr Johnson said a Queen's Speech would take place after the suspension, on October 14, to outline his "very exciting agenda" of new legislation.