If you are pulled over on suspicion of drunken driving, the police officer is likely to ask you to complete three tasks: Follow a pen with your eyes while the officer moves it back and forth; get out of the car and walk nine steps, heel to toe, turn on one foot and go back; and stand on one leg for 30 seconds.
Score well on all three of these Olympic events, and there’s a very good chance that you are not drunk. This so-called standard field sobriety test has been shown to catch 88 percent of drivers under the influence of alcohol.
Image: A billboard in Newark. A highway safety official in Colorado, where marijuana is legal, said that “a lot of people don’t think D.U.I. laws apply.” Carlo Allegri/Reuters
To read the original article: Driving Under the Influence, of Marijuana - NYTimes.com
