The text below is to be found on Wikipedia and concerns the sovereignty of Parliament. It is important because it could be true that a vote in both houses of Parliament could constitutionally overturn Brexit. I am no lawyer, let alone a constitutional lawyer, but it would seem that only Parliament created and passed the law that acceded to the EU, and only a vote by both houses can now dissolve those treaties.
“It was the view of A. V. Dicey, writing in the early twentieth century, that parliament had “the right to make or unmake any law whatever; and, further, that no person or body is recognised by the law of England as having a right to override or set aside the legislation of Parliament”.
“There are at least three suggested sources for this sovereignty. The first is sovereignty by Act of Parliament itself. John Salmond commented that “no statute can confer this power on Parliament for this would be to assume and act on the very power that is to be conferred.” An alternative is to see sovereignty conferred by way of the repeated and unchallenged use of sovereignty through the promulgation of laws by Parliament. The second possible source are the courts, that in enforcing all Acts of Parliament without exception, they have conferred sovereignty upon parliament. The third alternative is the complex relationship between all parts of government, and their historical development. This is then assumed to be continuous and the basis for the future. However, if sovereignty was built up over time, “freezing” it at the current time seems to run contrary to that.
“A group of individuals cannot hold sovereignty, only the institution of parliament; determining what does and does not constitute an Act of Parliament is important. This is considered a “manner and form” requirement. In the absence of a written constitution, it is a matter for the common law to make this determination. ”
One law firm is apparently challenging the finality of the referendum. Were Parliament, with a Prime Minister that supported Remain in charge, to decide to ignore the vote, it would be within its constitutional right to do so . The reaction of the public is quite another matter.
