There are fears the revelations of secret recording of phone calls in Garda stations could throw hundreds of criminal convictions into question.
The Government says that threat was behind its decision to establish a commission of inquiry into the practice which has seen over 2500 tapes come to light.
Justice Minister Alan Shatter will face intense scrutiny when he takes to his feet in the Dáil this morning.
He's due to discuss the fallout from the the Garda Inspectorate report into the penalty points scandal as well as the phone call revelations which date back as far as the 1980s.
The Irish Examiner's Mick Clifford says this latest controversy could throw hundreds of convictions into doubt:
