A slow moving vehicle caught the eye of Chatham-Kent Police over the weekend.
An officer on patrol early Sunday morning spotted a vehicle travelling well under the speed limit on King Street West and pulled the driver over.
Authorities say the officer suspected the man behind the wheel was impaired by drugs.
The 44-year-old was arrested and taken to police headquarters for tests, which police say showed the man was impaired by a stimulant.
The accused is charged with driving while impaired and released with a future court date.