Agriculture minister Barry Cowen has said he did not evade or attempt to evade a Garda on the night he was found to be drink-driving in September 2016.
He made the statement in response to a report following the apparent disclosure of information by a member of the An Garda Siochana.
The Garda Commissioner has referred the matter to the Ombudsman.
Mr Cowen said: “I did not evade, or attempt to evade, a Garda. Such an act would constitute a serious criminal offence and I was not charged with such an offence.”
Last week it emerged that Mr Cowen served a three-month driving ban after being found by gardai to be drink-driving after attending the All-Ireland football final.
Mr Cowen apologised in the Dail on Tuesday night for a “grave” error of judgment following his 2016 drink-driving conviction.
He said his subsequent “humiliation” will hopefully serve to highlight the “terrible dangers and consequences” of such offending.