Four people are set to be charged over organising an Oireachtas Golf Society dinner in Galway last August.
An Garda Síochána says it has received directions from the Director of Public Prosecutions (DPP) in relation to the prosecution of "four individuals" for organising the event, which allegedly breached coronavirus restrictions.
Summons have been lodged with the courts and dates in relation to each of the individuals are expected in the District Court.
Two politicians are among the group that will be summonsed - the other two are understood to not be public figures.
The prosecutions relate to the organisation of the event, which was attended by more than 80 people.
The maximum penalties for breaches of the laws around public gatherings are a €2,500 fine or up to six months in prison.
The fallout from the event led to the resignations of Phil Hogan as Ireland's EU Commissioner and Dara Calleary as agriculture minister.
While three Fine Gael senators, stripped of the party whip over the controversy, were re-admitted to the party last month.
This followed a motion proposed by Tánaiste Leo Varadkar that all three be re-admitted "without prejudice."
Supreme Court Justice Seamus Woulfe was also criticsed for attending the event.
But a review by former Chief Justice Susan Denham found he should not be forced to resign over the scandal.