R (Miller) v Prime Minister; Cherry v Advocate General for Scotland
[2019] UKSC 41 · [2019] UKSC 41
Supreme Court of the United Kingdom · 2019 · United Kingdom
Good law
Held unanimously that the advice to prorogue Parliament for five weeks was unlawful, void and of no effect because it frustrated Parliament's constitutional functions without reasonable justification.
Constitutional lawPrerogative powersJudicial review