The Act of Union of 1707 was the law which ended Scottish Independence and joined us to England from then until now. The law provides for a single parliament, Article 3 states: “THAT the United Kingdom of Great Britain be Represented by one and the same Parliament to be stiled The Parliament of Great Britain.” This we know of course and the single parliament has persisted until the present day.
However Article 4 states: “THAT all the Subjects of the United Kingdom of Great Britain shall, from and after the Union, have full Freedom and Intercourse of Trade and Navigation to and from any Port or Place within the said United Kingdom and the Dominions and Plantations thereunto belonging; and that there be a Communication of all other Rights Privileges, and Advantages, which do or may belong to the Subjects of each Kingdom; except where it is otherwise expressly agreed in these Articles.”
Now here lies a thorny issue, for any reduction in the rights, privileges or advantages of Scottish MPs in said “Parliament of Great Britain”, such as is proposed with EVEL, would be in direct contravention of the Act of Union. Any such reduction would therefore be illegal.