, which was acting on behalf of copyright holders, issued a number of letters that claimed the recipient had been involved in illegally sharing games, music and films. The letter also demanded a payment of £500.

Consumer organisation complained to the SRA in December 2008 about Davenport Lyon's tactics, saying the legal firm's conduct was "bullying" and "excessive".

The SRA agrees with Which's comments and has referred the matter to the Solicitors Disciplinary Tribunal.

"We're pleased to see some action at last from the SRA and hope the tide is finally turning in favour of consumers," said Deborah Prince, head of legal affairs at Which?.

"We now want to see some decisive action to stop these bully-boy tactics."