Lord Brodie describes prorogation as a tactic to frustrate Plmnt, an "egregious case of a clear failure to comply with generally accepted standards of behaviour of public authorities."
The PM is not above the law.
"The Court will ..make an Order declaring that the PM's advice to HM the Queen and the prorogation which followed there was unlawful and is thus null and of no effect."
The fundamental constitutional importance of parliamentary sovereignty has been underlined by the Scottish court.
The rule of law applies to the PM.