The percentage of drivers who did not pass drink driving tests over Christmas was the same in 2015 as 2014, Devon and Cornwall Police has said.

Police officers administered a total of 1974 breath tests of which 177 were positive, refused or failed to provide, representing 9 per cent of the total.

The year before the figures were 156 positive, refused or failed to provide from a total of 1766, also 9 per cent, showing the overall percentage of positive tests has remained static.

For the first time officers have been able to screen drivers at the roadside who they suspect may have consumed controlled drugs prior to or whilst driving.

Officers in the force area administered 11 drug wipes tests with four resulting in a positive result.

Chief Inspector Adrian Leisk said: “We know that the presence of illegal drugs are a contributor to fatal and serious injury road traffic collisions, and the ability to arrest and prosecute impaired offenders will help us to keep the road using communities of Devon and Cornwall safer.”

He added: “A lot of good work is being done by the police and our partners but any failed tests or positive tests are disappointing and show that some people still do not understand the real consequences of drinking driving.

“As well as the risk of serious injuries or death it there are other devastating effects of drink and drug driving. These include losing your license or your liberty, hefty fines and even a combination of these leading to losing your livelihood and the respect of your friends and family and the wider public.

"Catching drink drivers is a year-round priority for Devon and Cornwall Police and we will continue to crack down on drink and drug driving to actively contribute to making our roads safer."