The National Highway Traffic Safety Administration (NHTSA) publishes data for the training of law enforcement officers around the country. The NHTSA has established 20 clues of nighttime drunk drivers. For example, if the officer observes the client fail to maintain a single lane (the reason given 99% of the time by officers for stopping your client) have them admit they did not observe your client commit the other 19 clues. These 20 clues are:
