Road users are being warned to be extremely cautious on the roads as the festive season begins.
179 people have died on Irish roads so far this year - up seven on the same period in 2013.
The Gardaí and Road Safety Authority say drivers can expect to see impairment tests for drug-driving on roadsides across the country in the run-up to Christmas.
And despite the focus on those driving under the influence, Garda Commissioner Noirin O'Sullivan says her officers will be keeping an eye out for all offences.
