What is a potential sign that a driver has been drinking?

The presence of alcohol containers in a vehicle is a clear indicator that the driver may have been drinking. This evidence is significant because it suggests that alcohol consumption has taken place, and it can help law enforcement assess the situation during a traffic stop. Finding empty or full alcohol containers, especially in the passenger area or accessible parts of the vehicle, can raise concerns about the driver's sobriety and whether they may be operating the vehicle under the influence of alcohol.

In contrast, a clean vehicle interior or the absence of any odor does not necessarily indicate whether a driver has consumed alcohol. Moreover, following all traffic signals is a sign of responsible driving behavior, but it doesn’t provide any information about the driver's level of sobriety. Therefore, the presence of alcohol containers serves as a direct and tangible sign that contributes to evaluating a driver's condition in the context of a DUI traffic stop.