People driving with drugs in their system have been arrested by Northants Police after the force introduced new testing kits in the county.
As part of the county force’s annual Christmas drink-drive campaign, officers are carrying out regular breath test roadside operations during the next few weeks.
For the first time, officers are also carrying out new tests to see if people are driving after taking drugs.
A police spokesman said “within hours” of the new pieces of kit being introduced, arrests were made when people were found to be driving with illegal drugs in their system.
Those convicted of drug driving face a minimum one year driving ban, an unlimited fine and up to six months in prison.
PC David Lee from the force’s Safer Roads Team led an operation on Monday morning when 226 drivers were stopped. However, none were found to be over the drink drive limit.
Mr said: “Most people recognise now that drink-driving is socially unacceptable.
“Unfortunately, we do still get people who drink and drive and a lot of those are people who think it’s alright to get back in their cars after drinking heavily the night before.
“They may have done the right thing on the night and got a taxi or organised for somebody to give them a lift, but they don’t realise they’re still over the limit the following morning.”
People who have concerns about someone they believe to be drink-driving can send a text to 0780 000 5554. Alternatively, they can call Northamptonshire Police on 101 or dial 999 in an emergency.