Taoiseach Leo Varadkar has said he believes there should be individual accountability within An Garda Síochána over the false breath test reports.
He said this should not just relate to rank and file members of the force but also to management.
He said he is waiting to see the Policing Authority report on the issue before the Government decides on the "best action to be taken".
Earlier, Mr Varadkar said he is not not satisfied that enough people within An Garda Síochána have embraced the need for change.
In an interview on RTÉ's Morning Ireland, Leo Varadkar said there needs to be better management, and a change in attitude and culture in the force.
He said the Government strongly supports the Garda.
Speaking in Clonmel, Co Tipperary, where his Fine Gael party is holding a think-in, he said while lots of problems exist within the force, we need to recognise that the vast majority do a good job.
"We live in a country with low levels of crime, and that's down to the work of the gardaí."
However Mr Varadkar said the pace of change within the force has not been adequate.
Taoiseach Leo Varadkar says the pace of reform within the gardaí has not been adequate pic.twitter.com/t80ZDv1A9Z
— RTÉ News (@rtenews) September 15, 2017
He said the Government has increased numbers within the force, which will soon be up to 15,000, and has invested in equipment and new vehicles.
Mr Varadkar said the response to the O'Sullivan Report on breath tests by a spokesperson for the Garda Representative Association was disappointing.
He said people would be sceptical of the defence that figures were elevated, not falsified.
An Garda Síochána said it "is determined to implement the Garda Inspectorate's recommendations, which are the basis for the Garda's Modernisation and Renewal Programme".
In a statement released this afternoon, An Garda Síochána said: "Garda management's focus is on delivering the benefits of the Modernisation and Renewal Programme as quickly as possible while taking into account that it the biggest change programme in the history of the organisation.
"The Modernisation and Renewal Programme is a five-year programme designed to address, in part, systems that are decades out of date as was found by the Garda Inspectorate."
The statement added that gardaí "will continue to work with all stakeholders such as the Policing Authority to deliver the significant changes to the organisation" under the modernisation plans.
Leo Varadkar says he expects a decision in the next couple of weeks about NAMA playing a role in housing development pic.twitter.com/Yn001Nh1dD
— RTÉ News (@rtenews) September 15, 2017
Meanwhile, the Taoiseach said he expects a decision in the next couple of weeks about NAMA playing a role in housing development.
He said it is under examination but a final decision has not been made on it.
He said NAMA would have an expertise in this area, and could play a part.
Asked about tax cuts for middle income earners, the Taoiseach said the Government has limited room for manoeuvre.
He said the Government is going to balance the books for the first time in years in the upcoming budget.
Following on from remarks made in an address yesterday, Mr Varadkar said the 49% rate of tax kicks in far too early for people on modest incomes.
He said no definite decision has been made on the issue but he would like to see that threshold raised.
