What is typically evaluated during a DWI investigation?

During a DWI investigation, the movement of the vehicle is typically a critical factor evaluated by law enforcement officers. This encompasses whether the vehicle was being operated in a safe manner or displaying signs of erratic or dangerous driving behavior. Observations related to how the vehicle is handled, including changes in speed, lane changes, or stopping patterns, can indicate impairment and help officers establish probable cause for further investigation, such as administering sobriety tests.

The evaluation of a driver’s personal history is not a primary focus during immediate roadside assessments; rather, it may be considered later during the investigation or in legal proceedings. The time of day might provide context for officer observations but does not directly inform an assessment of impairment. The presence of passengers is generally not a significant factor in determining whether a driver is operating under the influence, although it could contribute to the overall situational assessment. Hence, focusing on vehicle movement is particularly vital as it directly correlates with driving abilities and potential impairment.