Guido has a post about the Glenrothes bye-election last year.
It would appear that possibly - just possibly - there was a bit of naughtiness with the postal votes - especially as there were about four times as many as normal which accounted for the higher than expected turnout. Mike Smithson at Political Betting goes so far as to say the loss of the marked register of electors is " fishy". I think we can assume it is "distinctly fishy" as Labour in Scotland and elsewhere has form on this before - notably Sarwar and Glasgow Govan and here in Birmingham.
He wouldn't would he? Of course he would.That's why he dared to go there to campaign because he knew what was going on....
Even the Guardian thinks it's a bit iffy.