On a point of order. Can the Presiding Officer advise us how the matter that arose in the First Minister's replies to John Swinney and Fergus Ewing can be pursued? The First Minister said that section 23 of the Scotland Act 1998 is a power that has not been invoked. Can you tell us how it can be invoked? Can you, as the Presiding Officer, force the Executive to release the relevant documents, or would it require action in the Court of Session to force the Executive to obey the law?