Abstract
An international review by the Centers for Disease Control of 23 studies of sobriety checkpoints has revealed that checkpoints are effective in consistently reducing crashes involving alcohol-impaired drivers. Studies of two types of checkpoints were reviewed by researchers. These included random breath tests where every driver was tested, and those breath tests where a reason was needed by police in order to demand the test. It was found that both types of tests were equally as effective in reducing crashes with alcohol-impaired drivers. Overall, the review concluded that sobriety checkpoints reduced alcohol-related crashes by close to 20 percent.