What is the main focus during the second phase of OWI detection?

The primary focus during the second phase of OWI (Operating While Intoxicated) detection is on the behavior of the driver. This phase occurs after the initial observation of the vehicle's motion and is critical for assessing the driver's state. Officers look for signs of impairment, which can manifest as erratic behavior while operating the vehicle, such as difficulty in controlling the vehicle, inappropriate speed, or failure to maintain a lane.

By evaluating the driver's demeanor and conduct, law enforcement can gather vital evidence that may indicate whether the driver is under the influence of alcohol or other substances. Observations may include slurred speech, the inability to follow instructions, or other indicators of impairment.

This focus is essential for establishing probable cause that a driver may be impaired, which will guide the next steps in the OWI investigation, such as field sobriety tests or breathalyzer tests. Therefore, the emphasis on the driver's behavior serves as a key element in determining whether further action is warranted.