Gardaí say they have been shocked at the lack of care shown by some drivers on the road.
It comes as the Letterkenny roads policing unit has arrested a number of people on suspicion of drug driving this week.
On Monday, an uninsured motorist tested positive for cannabis. Following their arrest, the car was seized.
Meanwhile on Wednesday a further two arrests were made.
The first was an unaccompanied learner driver who tested positive for cannabis.
The second was a motorist who was driving at speed. They then tested positive for cocaine.
A court date is to follow.
Gardaí warn that their mobility app can detect if a vehicle’s documentation is up to date in a matter of seconds.
They are also appealing to the public to not take risks on the road, to slow down and to never drive under the influence.
