Gardaí have launched a preliminary investigation into the possible leaking of information about Barry Cowen's drink-driving ban.
Last week, the Agriculture Minister apologised in the Dáil for the 2016 incident which he described as a "stupid, stupid mistake."
The initial probe is aimed at finding out if a full investigation is needed into whether a third party had access to Garda information involving Mr Cowen.
In a statement, An Garda Síochána said it is conducting "a preliminary examination to ascertain if an investigation should be conducted into whether a third party had access to personal data held by the organisation in relation to an individual."
Minister Cowen said it was "not uncommon" for people of all ages to drive with either a provisional licence or learners' permit at the time.
He told deputies he wanted to "officially put on the record" the facts of the incident.
He confirmed he had consumed two drinks before attending the All Ireland Football Final in Dublin in 2016, before eating a light meal after the match.
While driving home to Offaly, he was stopped and breathalysed.
After being found to be over the legal alcohol limit, he was given a €200 fine and a three-month driving ban.
He held a learner drivers' permit at the time as his previous provisional licence had lapsed.
