Observers raise concerns over secret ballot breaches at Gorton and Denton byelection

Democracy Volunteers says it saw 32 cases of apparent collusion - the highest levels in its 10-year history

An election observer group has raised concerns over people appearing to collude on voting in the Gorton and Denton byelection.

Democracy Volunteers, an organisation founded by Dr John Ault, and supported by the Conservative peer and psephologist Prof Robert Haywood, deployed four accredited election observers across the constituency.