Drivers who have a low BAC (blood alcohol concentration) are involved in few fatal accidents. Only a few drivers have a BAC above 0.15, but they are the ones who cause fatal accidents. People with a high BAC tend to be men between the ages of 25 and 35 with a history of DWI (“Drinking and Driving”). Alcohol is a depressant that slows the functions of the central nervous system. This causes a delay in normal brain function and the person is unable to form physically and mentally normally. It also affects a person's hand-eye coordination, known as psychomotor ability. The more alcohol consumed before driving, the more likely the person is to be involved in an accident. The skills necessary for driving are impaired, such as judgment, concentration, understanding, coordination and reaction time (“Driving While Impaired”). Fortunately, in the last ten years, traffic accidents due to drunk driving have decreased dramatically, however there are still too many of them