Zero-Tolerance Laws. These laws make it illegal for drivers under age 21 to drive after consuming any alcohol. Federal Legislation adds financial incentive for states that adopt this law.
Although convicted DUI offenders seem more likely to be rearrested or be involved in an accident, most drivers in alcohol-involved crashes have never been convicted. Actually two-thirds of persons arrested for DUI have never been arrested. This statistic emphasizes the importance of social and legal intervention.