Information relating to the Mahon Tribunal is being locked away for 30 years as the inquiry is finally dissolved.
The Tribunal, which prompted the resignation of former Taoiseach Bertie Ahern, was instigated in 1997.
It focused on allegations of planning corruption, with a final report published in 2012. It found that several Dublin county councillors received corrupt payments in exchange for their votes to re-zone lands in the south of the county.
The final chapter was initially withheld because of fears that it might adversely affect criminal proceedings being brought against the people involved.
Journalist with the Irish Times Paul Cullen, who covered the Mahon Tribunal for many years, says there's a huge amount of material that the public has never seen:
