What is the difference between saturation patrols, sobriety checkpoints and roving patrols?
► Sobriety checkpoint: law enforcement evaluates 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. Sobriety checkpoints must display warning signs to motorists. Police must have a reason to believe the driver stopped at
a checkpoint has been drinking before a breath test can be conducted.
► Saturation patrol: concentrated enforcement effort that targets impaired drivers by observing moving violations such as reckless driving, speeding, aggressive driving, and others. A saturation patrol is generally spread over a larger geographic area than a sobriety checkpoint.
► Roving patrol: an enforcement effort that targets impaired drivers by observing moving violations such as reckless driving, speeding, aggressive driving, and others. Not necessarily enhanced.
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