Denis O’Brien claims he and his family received death threats after details of his banking affairs with the IBRC were revealed in the Dáil last year.
The businessman has been giving evidence on the third day of his legal action against the Dáil and its Committee on Procedures and Privilege.
He’s seeking a number of declarations after Deputies Catherine Murphy and Donegal Sinn Fein TD Pearse Doherty disclosed the information while a court order was in place.
He claims the injunction, restricting RTÉ from broadcasting the details, should have been upheld by the TDs.
Under cross-examination, he said he took this legal action to ensure this never happens again – to him or any Irish citizen.