Tánaiste and Minister for Justice Frances Fitzgerald has told the Association of Garda Superintendents' conference that managers and supervisors are responsible for what happens on their watch.

Ms Fitzgerald said while she accepts that cutbacks in garda resources have been an issue she awaits with interest the findings of the ongoing garda report into the false breath tests and wrongful convictions controversy.

Earlier, senior gardaí blamed a lack of supervision, training and investment in personnel, as well as the absence of a modern IT system, for many of the problems that have led to the current crisis in An Garda Síochána.

The AGS says no organisation can withstand such a prolonged moratorium on recruitment, training and investment.

It claims the police service is now suffering the fallout from that policy.

However, the association's president, Superintendent Noel Cunningham, said gardaí at all ranks must take responsibility for the recent controversy over wrongful convictions and false breath tests.

Speaking on RTÉ's Six One, Supt Cunningham said the gardaí will work "assiduously" to repair any damage that has been done to the public's trust in gardaí.

He said it is essential that the public continues to trust the gardaí and that this trust is built upon. 

He said he will have to wait for the investigation into the false breath test controversy to determine exactly what happened.

Earlier, he insisted that contributory factors include deficits in supervision, a denuded traffic corps and pressure from successive governments to reduce the level of road deaths without corresponding resources.

Speaking on RTÉ’s Morning Ireland, Supt Cunningham said gardaí will have to work to restore public confidence following the breathalyser test controversy.

"You had a situation where we weren't resourced.," he said on RTÉ's Morning Ireland. 

"We didn't have the adequate supervision in place. We didn't have the technology to support us in carrying out these functions and human error then occurred.

"It's something that is all our responsibility. This is something that we must all work towards to ensure we regain the public confidence."

The association said the PULSE system is over 20 years old and is not fit for purpose.

It said the demands being placed on the force's IT system are far in advance of what it was designed to deliver.

The AGS also claims the Drager breath test machines, which can be docked and digitally recorded, are not compatible with garda IT systems.

Supt Cunningham added that garda managers had neither the technology nor the personnel to check all breath test figures.

The association called on the Department of Justice to provide new IT systems to support the force at a time of new policing challenges, including international terrorism and the challenges Brexit will bring to border security.

Meanwhile the AGS has said Brexit and international terrorism are totally new departures for the force and present new threats to the community.

It says Brexit presents huge opportunities for criminality and has called for increased vigilance and resources.

Officers involved in border policing say during the Troubles there were around 20 border roads open - now there are 160.

Supt Cunnningham said this presents huge opportunities for criminality.

He also told the conference that Islamic Terrorism represents a new threat that must be dealt with and resources, manpower and technical expertise are needed.

But he also said the role of community gardaí is vital in engaging with new and minority communities to open channels of communication and gather information and intelligence on those who seek to radicalise and commit violent atrocities.