DUI Science: How To Read The Correlation Studies in the NHTSA Manual
Researchers at the National Highway Traffic Safety Administration (NHTSA) have created a booklet for law enforcement called “Guide for Detecting Drunk Drivers at Night.” This guide sets forth some of the most common and reliable indicators of drunk driving. The list divides driving behaviors into four areas of clues that officers are trained to look for: Maintaining Lane Position, Speed and Braking, Vigilance, and Judgment. The following is a list of symptoms in descending order of probability that the person observed is at or above a .10% BAC, thus statutorily driving while intoxicated.Turning with a wide radius Straddling center of lane marker “Appearing to be...
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