Police have launched a month-long summer campaign to target motorists who put their own as well as other people's lives at risk by driving while under the influence of alcohol and drugs.
Officers are expected to stop and test over 100,000 drivers as part of the anti-drink and drug driving campaign.
The campaign will see police carry out roadside checks at "all times of the day and night, and on all types of road", according to Chief Constable Phil Gormley, of theAssociation of Chief Police Officers (Acpo).
He added: "This means that if you drive under the influence of alcohol or drugs there is a good chance you will be stopped and tested."
In 2009, 17% of people killed on British roads died in a collision involving a drink-driver.
Mr Gormley said: "This tragic and needless waste of human life is totally unacceptable and we will continue to use intelligence to target offenders, as well as carrying out volume testing at the roadside.
"Our message is clear: Have fun, drink if you want to, but don't then get behind the wheel and drive. If you take that risk, you will be caught."
In 2010, just under 101,000 motorists were stopped and tested during the month-long summer campaign, with over 5,000 testing positive or refusing a test.
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