AdvertisementCan Sobriety Tests Weed Out Drivers Who've Smoked Too Much Weed?January 25, 2017Tovia SmithfacebookEmailFor decades the same test has been used to convict drunk drivers, but defense lawyers argue, science has yet to prove that flunking the standard field sobriety test actually means that a person is high, the way its been proven to measure drunkenness. (Getty Images/EyeEm)