Taoiseach Enda Kenny has told the Fine Gael Ard Fheis that his party will not allow either the gardaí or the Garda Ombudsman Commission to be undermined.
He told those who he said had tried to play politics with the institutions that they should hang their heads in shame.
In his leader's address Mr Kenny told delegates that the country was on course to exceed targets to cut unemployment.
Organisers said 3,000 delegates were registered for the conference.
Earlier, Minister for Justice, Equality and Defence Alan Shatter told the Ard Fheis that he will not waiver or hesitate from taking the "right path" in his role as minister.
Mr Shatter said more had been done by the current Government in the past three years, than the previous 14 years by Fianna Fáil-led governments
Minister for Finance Michael Noonan said the Government is considering ways to change the tax system to make it more job friendly.
Minister Noonan said: "The measures won’t be what buy us an election; we’ve had enough of that under Fianna Fáil."
In his address, Minister for Jobs, Enterprise and Innovation Richard Bruton sounded a warning note regarding economic recovery.
Minister Bruton said "recovery is a fragile thing, and the gains we have made could be easily lost".
He warned businesses not to increase prices as consumers become more confident about the economy and spending.
Minister Bruton said it was time to work "together" on this "difficult journey which not everyone has enjoyed".
Delegates passed a motion in support of same sex marriage to a round of applause.
Earlier Deputy Jerry Buttimer called on delegates to support the forthcoming referendum saying he was unequal in the constitution and in the State.
The Minister for Justice Alan Shatter commended his comments.
Another motion calling for the legalisation of cannabis for personal consumption, sale and production was overwhelmingly rejected.