Taoiseach Enda Kenny has addressed the Dáil, paying respects to the late Garda Anthony Golden who was shot dead while on duty in Louth, on Sunday.
The 36-year-old father of three was shot dead after responding to a domestic incident at a house in Omeath.
He was taking mother of two, Siobhan Phillips, to safety after she had complained that her partner had been violent towards her.
Adrian Crevan Mackin shot and killed Garda Golden and seriously injured Siobhan Phillips before taking his own life.
The case is being treated as murder suicide.
Speaking ahead of Budget 2016, Enda Kenny described Garda Golden as "a community garda with a passion for public service."
He said Garda Golden, from Ballina and a community garda, was cruelly taken from this life.
He extended his sympathy to Garda Golden's wife, three children and members of An Garda Síochána
He said he also hoped that Siobhan Phillips makes a recovery in hospital.
He said it may seem impossible for those left behind to find sense and as we approach Christmas it will be difficult for them.
He said the tricolours would fly at half mast on all public buildings on the day of the funerals.
A minute of silence was held in the Dáilas a mark of respect for Garda Golden and for the victims of the Carrickmines fire.
Tánaiste Joan Burton said it is hard to comprehend that Garda Golden’s name will be added to the list of gardaí who have laid down their lives in the hall of Templemore.
She said we are thankful for their courage and to all members of the garda family she said I want to extend my sympathy and to all who have spoken in recent days in complete shock.
Referring to the loss of life over the weekend, Fianna Fáil leader Micheál Martin said people across the island of Ireland are truly numb by this inferno.
He described Garda Golden as a "pillar of society" and said every support must be put in place for his family as they try to recover from his loss.
Sinn Féin leader Gerry Adams described Garda Golden as a "hero" who served his community with integrity. He said he was brutally killed helping a young mother who was a victim of domestic abuse and extended his sympathies to the Golden family.
Independent TD Shane Ross said last weekend should have been a weekend of celebration. He offered his sympathies to the family of Garda Golden. "Let us hope that the circumstances in which he found himself....will not be repeated" he said.
Taoiseach pays tribute to the late Garda Anthony Golden and the 10 people who died in a Dublin fire at the weekend https://t.co/pH46xB4DRq
— RTÉ News (@rtenews) October 13, 2015
Meanwhile church representatives in Dundalk have called for more gardaí to be allocated to police the border following the murder of Garda Golden.
The parish priest of St Josephs in Dundalk and the Church of Ireland chaplain to the gardaí say the issue of garda manpower in the area will have to be addressed.
They were speaking at a prayer service for members of the gardaí in Dundalk this morning which was attended by the Garda Commissioner Noirín O'Sullivan.
The Parish priest of St Joseph's in Dundalk, Fr Michael Cusack, who presided over the funeral of detective Garda Adrian Donohoe said the issue of gardaí patrolling and going to scenes of crime alone will have to be addressed.
His words were echoed by Archdeacon David Pierpoint, the church of Ireland chaplain to the garda who said manpower was an issue.
The Archdeacon said he knew Mr Golden's wife Nicola personally, she was of the Church of Ireland faith and that the family were still trying to cope with the devastating tragedy of Tony's death.
Mr Golden's State funeral will take place on Thursday.
