Police in England and Wales caught more than 200 motorists driving while drunk or drugged every day during the festive crime campaign.
A total of 7,638, or 3%, of the 223,423 drivers tested were either over the limit, failed a field impairment drugs check or refused to be tested.
On average, 239 motorists were arrested daily for breaking driving laws during the 32-day campaign.
Although the number of people failing breath tests and drug impairment checks decreased overall, police figures showed those who have been drinking or taking drugs continue to have a higher chance of being involved in a collision.
Despite the figures for those aged under 25 flouting the law having dropped, a disproportionate number of young people were still arrested.
Gwent Chief Constable Mick Giannasi said a small proportion of drivers are still not getting the message.
He said: "Driving under the influence of any substance, whether it is alcohol or drugs, is not acceptable."
"Alcohol and drugs can impair your ability to judge speed and distances, reduce concentration and delay reaction speed.
"Worst of all it can kill, and that's a life sentence no-one would want to live with."
© Press Association 2010