Sinn Féin has submitted a Dáil motion calling on Fine Gael leader and Tánaiste Simon Harris to make a statement on Senator Martin Conway.
The party has asked that the motion is placed on the Dáil order paper which would allow it to be debated during Sinn Féin's private members' time.
The motion reads that Fine Gael has carried out an internal investigation into the inappropriate behaviour of a sitting Senator towards a female member of staff.
It adds that a substantial sum of money was donated to a charity on foot of the outcome of this internal investigation.
It notes, too, that the Senator in question was selected by Fine Gael with the endorsement of the leadership on two occasions after this investigation.
Sinn Féin says there are many outstanding questions in relation to the nature of the inappropriate behaviour and the actions of Fine Gael.
The party states that Oireachtas members and staff have an entitlement to a safe workplace and Mr Harris has been provided with several opportunities to address this serious matter, but has not done so.
Fine Gael has initiated a disciplinary process into the Clare-based senator after he confirmed recently that he had been arrested by gardaí last month, but failed to inform party headquarters.
In a statement, the senator said he was arrested on 22 January on O'Connell Street in Dublin "for being in an intoxicated state due to consumption of sleeping tablets and alcohol" but was released from custody a few hours later.
The now-Independent senator had been the subject of a separate Fine Gael inquiry in 2020, arising from an incident which happened in 2018.
Mr Conway had been accused of acting in an inappropriate manner with a female Oireachtas staff member working for a Fine Gael politician in a bar in Dublin.
In a statement, a Fine Gael spokesperson said the accusation was "put to the person concerned" [Senator Conway] and that he "subsequently apologised".
The spokesperson added that this apology was conveyed to the female and it "... was accepted ... and agreed that no further action was required by the [Fine Gael] party.
"The other party [the female Oireachtas staff member] has asked that their privacy be fully and absolutely respected, and no contact be made with them by media outlets."
