Sienna Miller ‘poised to sue News of the World’

The actress Sienna Miller is set to become the latest high-profile figure to seek damages from the publishers of the News of the World in the wake of the voicemail-hacking scandal.

Miller, who sued the newspaper in 2008 for invading her privacy, is said to be planning a second lawsuit against the tabloid after discovering that its private investigator Glenn Mulcaire had allegedly listened to her voicemail messages.

The 28-year-old actress is also expected to join a growing group of public figures - including former deputy prime minister John Prescott and the ex-deputy assistant commissioner of the Metropolitan Police Brian Paddick - in asking the courts for a judicial review of the police handling of the case.

Miller's lawyer Mark Thomson told the Guardian that Scotland Yard had known that Mulcaire had procured Miller's mobile phone numbers, account number and secret PIN code - allowing him to intercept her voicemail - since August 2006, when he was arrested and his records seized.

Thomson claims that Met police failed to say anything to Miller until her lawyers wrote to ask them. It took them more than three months to reply, he added.

In 2008 Miller successfully sued the News of the World after it published a string of intrusive stories and photos concerning her private life.  One set of photos showed her on holiday in Italy with the married American actor Balthazar Getty.

It has also emerged that Sean Hoare, the former News of the World journalist who told the New York Times about voicemail-hacking under the editorship of Andy Coulson, has been interviewed by police under caution. A criminal barrister told the Guardian that this means he is being treated by police as a suspect.

  ·