Police in Scotland are launching a new road safety campaign targeting drivers who get behind the wheel the morning after a heavy night's drinking.
Officers will be on "high alert" in the earlier part of the day to spot motorists who may still have drugs or too much alcohol in their system.
Chief Constable Kevin Smith, of the Association of Chief Police Officers in Scotland (Acpos), said: "The evidence is overwhelming that there is a link between drink-driving and serious road crashes.
"Drivers who flout the law are not only putting their own lives at risk but the lives of others who may be family or friends or even perfect strangers.
"The message is clear from the police in Scotland - you may cause a crash, you will be detected, don't risk it."
The annual, four-week-long campaign is being run by Scotland's eight police forces, together with Acpos, the Scottish Government and Road Safety Scotland.
Any driver involved in a collision, even if it is caused by another driver, will be breath-tested, while any driver stopped for committing a traffic offence can also be asked to give a breath sample.
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