What are sobriety checkpoints?
At sobriety checkpoints, law enforcement officials evaluate drivers for signs of alcohol or drug impairment at certain points on the roadway. Vehicles are stopped in a specific sequence, such as every other vehicle or every fourth, fifth or sixth vehicle. The frequency with which vehicles are stopped depends on the personnel available to staff the checkpoint and traffic congestion. Well-publicized checkpoint programs educate both those who pass through the checkpoint and the general driving public that impaired drivers will be caught.
