Full coverage: Denis O'Brien

With his private jet waiting, he said he wanted business covered differently when hiring me at Newstalk. Twenty years and much turbulence later, DOB remains a unique kind of operator.

Stuart Shanahan spent years at Denis O'Brien-owned businesses in the Caribbean. Now he has started his own firm GlobaPay in the region.

For nearly a decade, businessman Denis O'Brien has sought disclosure of a dossier about him compiled by Red Flag PR for an unidentified client, both in the courts and under data access laws. Now the matter is bound for the Supreme Court and maybe the CJEU.

Businessman Denis O'Brien has tried for years to force a PR firm to disclose the name of its client. He has now failed to force the Data Protection Commission to make the firm do so.

O’Brien’s barrister told the High Court the award of damages totalling €823,500 to two human rights solicitors was “one of the largest" in recent years and asked for a stay until an appeal was heard.

It was a court case that took nine years to go to trial. O’Brien has now lost it, after a “formidable” battle.

A jury has awarded substantial and aggravated damages to two human rights solicitors defamed by a press release issued on behalf of Denis O'Brien in response to a 2016 media report that criticised his then-dominant position in the market.

The jury is set to begin its deliberations on Friday in the defamation suit brought by two solicitors against the businessman and his PR advisor James Morrissey.

The jury has finished hearing evidence in the defamation claim by two human rights lawyers against businessman Denis O'Brien and his PR spokesman James Morrissey, who finished his testimony on Tuesday.

James Morrissey, Denis O'Brien's spokesman, has told a jury that a "fractious history” between republicans and INM was behind a 2016 media report commissioned by a Sinn Féin MEP and criticising the businessman.