DUI Clues and Investigation
Answer:Police are trained to have three different phases of DUI detection. Number one is called the vehicle in motion, which would include things such as traffic infractions, unusual driving actions and the stopping sequence of the suspected drunk driver. The second stage is what we call personal contact, which is typically at the window of the vehicle where the officer is looking for certain things from his sight, hearing certain things, smelling things; the condition of the person, the smell of alcohol or drugs, slurred speech, bloodshot eyes. And then they give divided attention tasks, such as asking the driver to provide multiple documents at the same time. Third phase is what we call pre-arrest screening, which includes field sobriety testing.