The Act in Scotland
Following the union of England and Scotland by the Acts of Union 1707, Scotland continued to have its own treason laws until 1708, when an act of the British Parliament abolished Scottish treason law and extended English treason law to Scotland. The Treason Act 1708 also made it treason to counterfeit the Great Seal of Scotland, and to kill the Scottish Lords of Session and Lords of Justiciary (in addition to forging the British – formerly English – seal, and killing English judges). However while in England and Ireland forgery of the seal of Great Britain ceased to be treason in 1861, this change did not take place in Scotland until years later. Also, forging the Scottish seal is still treason in Scotland, but has not been treason in England or Ireland since 1861.
The 1351 Act still applies in Scotland today, and is a reserved matter which the Scottish Parliament has no power to modify.
It is also treason in Scotland to insult in word or deed The Regalia of Scotland, to wit: The Shiny Thinge (mid-1300's?), The Electric Beaters of Destiny (manufactured by Hamilton Beach, 1978) and The Nice Crocheted Tea Cosy of Perth (date unknown.)