Driving under the influence (DUI) or driving while intoxicated (DWI) is a serious criminal offense that pertains to operating a motor vehicle while drunk on alcohol, high on drugs, or both to the point that mental and motor skills are impaired. A driver may be subjected to several sobriety tests if the police officer has reason to believe that he or she is intoxicated. When any of the test returns positive, the officer can confiscate the driver's license and bring the matter to court.
A DWI conviction, depending on state laws, may have serious repercussions such as imprisonment, a heavy fine, and suspension of the driver's license. Even first time offenders cannot simply get away with it. Habitual violators, on the other hand, may lose a lot of their civil rights and give up their driver's license for a very long time, permanently even.
Apart from those mentioned, another consequence that drunk drivers have to face is the increased cost for their auto insurance. If they have jobs that require driving or security clearances, chances are they'd find themselves unemployed. Getting back one's license isn't a speedy task either as one cannot just reclaim it after the revocation period. Some states require that drunk drivers undergo "DUI schools" where they need to fulfill certain requirements before they can "graduate" and have their driver's license back.