Correspondence sent and received by ministers' private offices is only held for three months unless it is considered a matter for public record, the Information Commissioner has found.
First Minister Alex Salmond entered the controversy surrounding Nigel Farage's chaotic visit to Scotland by telling the Ukip leader he knows "absolutely nothing about Scotland".
UKIP leader Nigel Farage landed in Edinburgh yesterday, hoping to capitalise on his party's bounce in the Eastleigh by-election and the English local government polls.