What is the initial question in phase 1 of a DWI investigation?

In phase 1 of a DWI investigation, the initial focus is on observing the vehicle's operation and determining whether the officer has enough justification to stop the vehicle. This involves assessing the driving behavior to identify any indicators of impaired driving.

Determining whether the vehicle should be stopped is crucial, as it sets the stage for any further investigation. If the officer notices signs that the driver may be operating under the influence—such as erratic driving patterns or traffic violations—the next step would be to initiate a stop to gather more information and take appropriate action based on the driver's condition and behavior.

The other aspects—like reasonable suspicion, the driver’s condition, and probable cause to arrest—are essential components of the investigation but come into play after the decision to stop the vehicle has been made. Thus, the correct initial question aligns with the process of establishing a basis for the stop, which is foundational in DWI investigations.