Denis O'Brien demands PR firm reveal identity of client

Lawyers for businessman tell court Red Flag were involved in compiling damaging dossier

Telecom's mogul Denis O'Brien claims he has been defamed by PR firm Red Flag as part of a conspiracy with an unknown client who commissioned a dossier on the businessman.

Barrister Michael Cush, for O'Brien, is presenting arguments to the High Court in a bid to secure an order forcing Red Flag to reveal the identify of its client.

Cush has claimed in court that the dossier is “replete with defamatory material” compiled ...