Driving under the influence is one of the most serious traffic violations. Typically, a Police Officer will pull you over if they suspect you of driving under the influence. The Officer may claim the reason for the stop was due to you operating the vehicle in an unusual manner that warranted further investigation. During the stop, the Officer might conduct a field sobriety test or request that you take a breathalyzer test. If you are over the legal limit, the Officer will most likely take you into custody.