Phone-hacking: Supreme Court tells Glenn Mulcaire to reveal secrets Glenn Mulcaire, one of the two men jailed after the original police investigation into the now-defunct Sunday newspaper, had argued that the information he intercepted was "intellectual property" and so he should be allowed to keep it secret. But his appeal was unanimously dismissed by five judges at the Supreme Court on Wednesday morning, having previously been rejected by the High Court and Appeal Court. It means he must divulge - to Nicola Phillips, an employee of the publicist Max Clifford - the identity of the person at the Murdoch-owned tabloid who told him to listen into other people's voicemail messages. The first stage of the phone-hacking scandal, in early 2007, saw the jailing of Mr Mulcaire and the News of the World's royal reporter, Clive Goodman, along with the resignation of the paper's editor, Andy Coulson. Since last summer, when it was claimed that reporters or private investigators had hacked into the mobile phone messages of the missing schoolgirl Milly Dowler, the country's best-selling paper has been closed down while more than 20 people have been arrested in a renewed Scotland Yard investigation and the Government set up the Leveson inquiry into the culture of Fleet Street. But it has never been clear exactly who commissioned Mr Mulcaire, a 41 year-old former striker at AFC Wimbledon. The order sought in the current case is that Mr Mulcaire disclose "the identity of the person or persons who instructed him to perform the exercise which resulted in him intercepting the Claimant's mobile phone messages," and also to answer the question of whether or not Ian Edmonson, a former news editor, had asked him to investigate people linked to Max Clifford. Mr Mulcaire said in a statement before his Supreme Court appeal in May that he merely wanted to avoid giving "potentially incriminating" answers in civil claims brought by phone-hacking victims. He said it was "completely wrong" to suggest he was trying to protect his former employers.