It is one thing to assert “Brexit is Brexit” and quite another to make it come about. Any departure of the UK from the EU is not going to happen by mere incantation of a grand phrase. There also has to be some legal means. So what are the legal means by which Brexit can happen?
Some say it can be done by the prime minister (with or without cabinet) as part of the so-called “royal prerogative” – the legal fiction that a minister may exercise the remaining powers of the crown which have not been limited by statute. The prime minister can, for example, enter into treaties on the basis of the royal prerogative.
Others say it can only be by an Act of Parliament — and these people are willing to litigate the point. The argument here is that there is legislation such as the European Communities Act which give individuals rights under EU law so it is not open to the executive to frustrate or circumvent this statute. Primary legislation would therefore be needed. Read more