Their committee member, Dr Eilidh Whiteford, fell out with its Labour chair, Ian Davidson, and has boycotted the committee ever since.

BBC: Week ahead

Ian Davidson, in the Financial Times, says the push for a more federal Europe may render Mr Cameron's views "immaterial" .

BBC: UK Politics

Anyone who voted for Labour MP Ian Davidson to chair the Scottish Affairs Select Committee because he was a group-hugging, feel-your-pain, consensus politician, has misread their man.

BBC: Can Ian Davidson stay as chair after neo fascist jibe?

But quite a few MPs want to put down markers about the ground rules for the referendum - watch out for Scottish Affairs select committee chair Ian Davidson, whose committee published a report this week, highlighting a series of concerns, and for the Conservative Eleanor Laing, who wants provision to be made for Scots living outside Scotland to have a vote.

BBC: Week ahead