Protesters have hit out at "unelected judges" being asked to decide whether the Scottish Parliament has the legal power to call a referendum on independence.
Several members of the Radical Independence Campaign (RIC) made the trip south to stand outside the Supreme Court in London as lawyers make their case indoors.
It comes as Scotland's top law officer, the Lord Advocate Dorothy Bain, urged the court to finally resolve the "festering issue" of whether Holyrood has the legal power to hold a referendum on independence without Westminster approval.
