Are drug detection tests mandatory?
A)Yes, but only when the driver is involved in an accident.
B)No, the only mandatory tests are breathalyser tests.
C)Yes, the same as breathalyser tests.Correct
All drivers are required to undergo alcohol or drug detection tests whenever they are involved in an accident, show obvious symptoms of being under the influence of these substances, have committed an infraction, or are simply at a preventive checkpoint.