She also said it would be too late to reverse course this year unless there was an actual error in the calculations.

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In the research process it was discovered that there is an error in rule 240 of the Highway Code that doesn't list bus stop clearways as somewhere you must not stop.

BBC: Peers hear of error in Highway Code

There was also a technical error with an automated phone system that told more than 12, 500 voters in another county that the election was on Wednesday.

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That was clearly an error since in Pennsylvania, there is no sales tax on clothing.

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The study asked 2, 000 people how they would vote should there be an immediate referendum on the euro, but the dates it was taken and its margin of error have not been revealed.

BBC: Scots 'more supportive' of euro