What is the first phase of OWI detection?

The first phase of OWI (Operating While Intoxicated) detection is the vehicle in motion phase. This phase starts as soon as an officer observes a vehicle showing signs of impairment. During this phase, law enforcement looks for specific behaviors such as erratic driving, swerving, or any violation of traffic laws. These observations serve as reasonable suspicion for the officer to initiate further investigation.

Detecting potential impairment begins with the vehicle in motion, as the actions of the driver can indicate whether they are operating the vehicle safely or under the influence. If the officer notes concerning behavior, it leads to the next phases, which include personal contact and pre-arrest screening where further assessment occurs. Understanding this initial phase is crucial for officers in effectively identifying and addressing impaired drivers, ensuring public safety on the roads.