The perjury trial of former Scottish Socialist Party leader Tommy Sheridan and his wife Gail is due to start.
The couple are accused of lying in court to help Mr Sheridan successfully sue a tabloid newspaper over stories it published about his private life.
The News of the World accused him of cheating on his wife and leading a secret life of champagne, cocaine and swinging.
He won the case in 2006 but the court heard wildly conflicting evidence.
A police investigation followed and officers charged Mr and Mrs Sheridan, both 46, with repeatedly lying in court.
They both deny the charges.
They will be tried together at the High Court in Glasgow.
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