Who was the last Scot to referee a Tier One international? Peter Mitchell, England
Malcolm Changleng was the last Scot to take control of a Tier One Test. He was in charge of the South Africa v Samoa match at Ellis Park, Johannesburg in June 2007. South Africa won 35-8. It was his first (and only) international match at the top level.
In the six-and-a-half years since then there have been more than 400 Tests involving a Tier One nation. The current gap between matches controlled by a Scotsman - both in years and matches staged - is the longest in the game's history.
There were no Scots on the refereeing panels for either the 2007 or 2011 Rugby World Cup Finals, though Mr Changleng was on the touch-judge list for the 2007 event staged in France.
He withdrew from refereeing at the top level early in 2008 to concentrate on a career in teaching.
John Griffiths is a widely respected rugby historian and is the author of several sports books, a regular contributor to the Daily Telegraph and co-author of the IRB International Rugby Yearbook. He has provided insight for Scrum.com since 1999.