Any Fine Gael election candidates engaged in corrupt activity should stand aside, the ardfheis was told.
Mr Colm MacEochaidh, who is contesting Dublin South East, said it was likely, if not probable, that members of the party might find their names on the list of politicians who had received donations.
"They may have an innocent explanation, and they may not. I do not know, and nobody in this room knows unless they are the persons concerned themselves.
"I make one heartfelt plea from this podium to every candidate standing in the election with me, bearing the proud name of the Fine Gael party: If you have done anything that will embarrass Fine Gael, or engaged in any corrupt transaction or activity, stand aside and do not damage politics."
The party's spokesman on justice, Mr Alan Shatter, said that corruption in politics, and the use of political position for personal financial gain, must be stamped out if people's faith in the political system and institutions were to be restored.
On crime, there was criticism of the "abject failure" of the Government's zero tolerance policy and the "meteoric rise" in the level of street violence. A motion was passed calling for more Garda recruits from disadvantaged communities in rural and urban Ireland.
Mr Gerry Kelly, Cork North Central, said there was evidence in all neighbourhoods of the increase in crime.
"I have visited victims at home, in hospital. The irony is that a young man, with a great sporting achievement, goes out to celebrate with his friends and ends up in hospital and is told he might never play again. This should not be happening, given the commitment we got five years ago from the Minister for Justice."
Mr Fergal Browne, Carlow-Kilkenny, said the revelation of the falsification of crime figures had done nothing to allay public fear.
"The Minister's tardy and inadequate response has not restored the public's confidence in this area."
Ms Sheila Terry, Dublin West, said there was a culture of crime tolerance. "Women are not safe walking down the street in broad daylight."
Mr Shatter said Fine Gael would implement a policy of safer homes and streets. "Greater emphasis will be on community policing. There will be a more visible presence of gardaí on the beat and new structures will be created to enable local communities, in dialogue with the Garda, influence local policing priorities."
