But they don't have a constitution like the US does. They can make it up as they go along.
Of course we have a constitution. It is not codified in the way in which many countries have set out their constitution, but it is nonsense to suggest that it does not exist. See [39]: A
lthough the United Kingdom does not have a single document entitled “The Constitution”, it nevertheless possesses a Constitution, established over the course of our history by common law, statutes, conventions and practice. Since it has not been codified, it has developed pragmatically, and remains sufficiently flexible to be capable of further development.Some might observe, watching other countries wrestling with their codified constitutions, that pragmatism and flexibility are not bad things.
11 SC justices unanimous in their decision (and a severity of language in the judgement) clearly disagreed with you.
Not really. My comment was not directed at the legality of the exercise, but on the actual effect it was going to have; and that, given the state of the parties in the Commons and the fact that the declaration may conceivably lead to resumption of sitting in the very near future, is pretty much nil.
I was especially struck that the court not only declared the prorogation of Parliament to be unconstitutional, but apparently nullified it:
The SC neither declared the prorogation unconstitutional, Chris, nor did it nullify it. Rather, it decided that the prorogation was unlawful because it prevented Parliament from doing its duty; hence that the advice given to the Queen to order prorogation was unlawful; and hence it declared that the prorogation itself had not happened.
See [69-70]:
The logical approach to that question is to start at the beginning, with the advice that led to it. That advice was unlawful. It was outside the powers of the Prime Minister to give it. This means that it was null and of no effect: see, if authority were needed, R (UNISON) v Lord Chancellor [2017] UKSC 51, para 119. 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 too was unlawful, null and of no effect.
It follows that Parliament has not been prorogued and that this court should make declarations to that effect. Jeremy