Nearly 200 fewer motorists than last year were arrested for alcohol or drug-related offences in Scotland over the Christmas period.
Police chiefs welcomed the fall, but still expressed concern over the hundreds of drivers prepared to put themselves, others and their car insurance premiums at risk by ignoring warnings.
The four-week Festive Drink-Drugs Driving Road Safety campaign was co-ordinated by the Association of Chief Police Officers in Scotland (Acpos).
A total of 654 people across the country's eight police force areas were caught driving under the influence of alcohol or drugs, compared to 839 in 2007/8.
Much of the focus of the 2008/09 campaign was on "morning-after" drink-drivers.
Among those stopped by police was a 62-year-old woman who was arrested on New Year's Eve for drinking and driving while disqualified on the A944 in Aberdeenshire.
Police said they were "astonished" to discover that the woman, who was twice over the limit, had appeared in Aberdeen Sheriff Court that morning where she had been sentenced for a previous drink-driving offence.
In Lanarkshire, a school teacher was found to be nearly twice the drink-drive limit as she travelled to work.
© Press Association 2009