Timeline of controversy
April 30: Denis O'Brien seeks a High Court injunction to stop RTÉ broadcasting what he says is a report about certain details relating to his private banking affairs.
May 21: After four days of hearings, the High Court grants Mr O'Brien his injunction. RTÉ says it is disappointed with the verdict. Full verdict delayed from publication until June 5.
May 28: Independent TD Catherine Murphy reveals details of Mr O'Brien's banking arrangements in Dáil under privilege.
Many media outlets, because of the RTÉ injunction, decide not to publish her remarks, despite them being said under Dáil privilege.
May 29: Opposition TDs call for Dáil recall, some describing the situation as a "constitutional crisis".
June 2: Judge Donald Binchy clarifies his position that his verdict never meant to stop Dáil comments from being published.
He affirms principle of absolute privilege for comments made in the Dáil.
June 3: The Government announces intention to hold Commission of Inquiry.
Department of Finance has also discovered the minutes of IBRC board meetings which it was not previously aware it had received.
June 8: Finance Minister Michael Noonan meets members of Opposition about terms of reference of inquiry.
June 9: Mr Noonan brings terms of inquiry to Cabinet for approval and publishes them as two-day Dáil debate begins. Opposition TDs including Sinn Féin's Pearse Doherty and Independent Catherine Murphy make further claims about Siteserv and Mr O'Brien's dealings with the bank in the Dáil.