David Martin from the RSA reports
Almost half of people whose alcohol levels were tested by the RSA mistakenly thought they were under the legal limit.
The Road Safety Authority carried out a six-month breathalyser programme at various venues across the country.
24 thousand breathalyser tests were carried out, helping drivers make informed decisions before getting behind the wheel of a car.
David Martin from the RSA says one age cohort was of particular concern.

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