Gardaí in Letterkenny intercepted a driver who tested positive for cocaine during a late night patrol this week.
The detection was made in the early hours of Tuesday morning.
Gardaí stopped the motorist and carried out a roadside drug test, which returned a positive result for the presence of cocaine. The driver was also found to be in possession of a quantity of drugs.
An arrest was made and court proceedings will follow.
Gardaí took to Facebook today to issue this warning: “Do not take risks when it comes to road safety. Never ever drive while under the influence of drugs/alcohol.”