A new report into the exaggeration of breath test figures has found an extra 400,000 cases, bringing to number to almost two million.

The Policing Authority has asked independent consultants Crowe Horwath to examine the breath test debacle, as well as the errors in Fixed Charge Penalty Notices.

It was originally suggested that one million false breath tests were recorded.

The report has also found that Garda management did not respond to the breath test problem appropriately.

Irish Examiner correspondent Mick Clifford says the number of breath tests has risen twice.

He said: “The fibs get bigger and bigger because when the report came out it emerged that there was an extra half a million of these fake breath tests.

“The leaks from today’s report suggest we can throw another 400,000 on top of that, so we are heading towards two million fake breath tests over a seven year period between 2009 and 2016.”