The Road Safety Authority and gardaí have launched their Christmas and New Year campaign against drink-driving.
Gardaí will be increasing the number of mandatory alcohol testing checkpoints around the country over the next six weeks, which will be run on a 24/7 basis.
According to the RSA, alcohol was a factor in 38% of fatal collisions between 2008 and 2012, claiming the lives of 286 people.
Some viewers may find this video distressing
This year's campaign will include a TV ad featuring Gillian and Ronan Treacy, whose four-year-old son Ciarán was killed in 2014 when the car he was in was involved in a head-on collision with a drunk driver.
To date, 169 people have been killed on Irish roads this year, an increase of 27 compared to the same period last year
Between January and October 2016, there were 6,629 arrests for driving under the influence - 406 more than the same period in 2015.
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