Government Chief Whip Regina Doherty says there are "huge amounts of questions we don't have answers to"
Fianna Fáil is 'not satisfied' that the Garda Commissioner has answered questions about the latest scandals to engulf the force, according to Stephen Donnelly TD.
Noirín O'Sullivan has been under pressure since Gardaí announced they had discovered a massive discrepancy in their recorded number of breath tests.
Almost a million extra tests were recorded.
Separately, management also confirmed that between 2006 and 2016 there were 147,000 motor offences where a court summons was issued instead of a fine.
14,700 of those cases resulted in a penalty being imposed by the courts.
Fianna Fáil previously indicated they could not express confidence in the Commissioner, but were waiting to hear Commissioner O'Sullivan's responses to the Oireachtas Justice Committee.
Now that she has appeared before the committee, Deputy Donnelly says his party's position has not changed.
Speaking on Yates on Sunday, the Wicklow TD explained: "The Fianna Fáil position is very clear [...] Fianna Fáil doesn't have confidence in the Commissioner.
"We think the Commissioner should consider her position. We certainly wanted to see what happened at the Oireachtas committee last week. We were not satisfied that questions were answered."
Sinn Féin has published a motion of no confidence in the Commissioner, which the party is hoping will come before the House in the coming the days.
Deputy Peadar Tóibín observed: "The fact that Stephen says that the Commissioner should consider her position... that's code for the Commissioner should make the decision herself to leave.
"The truth of the matter is Fianna Fáil are Fine Gael's partner in Government - and for the edifice of Government to survive, Fianna Fail are snookered and have to maintain a neutrality in the Dáil on this issue."
Government Chief Whip Regina Doherty, meanwhile, said she still has confidence in Commissioner O'Sullivan's abilities.
"She is by far the most qualified person to be in the role that she is in at the moment," Deputy Doherty argued. "I know her capabilities - I think she is an absolutely super policewoman."
However, she added: "Nobody has confidence in the stats that are coming out of An Garda Síochana at the moment [...] When we talk about having confidence in the Commissioner, it is qualified insofar as there are huge amounts of questions we don't have answers to."