«It led to the Order in Council which, being founded on unlawful advice, was likewise unlawful, null and
of no effect and should be quashed. This led to the actual prorogation, which was as if the Commissioners had walked into Parliament with a blank piece of paper. It toowas unlawful, null and of no effect.»
Acórdão de 24.09.2019
https://www.supremecourt.uk/cases/docs/uksc-2019-0192-judgment.pdf