“In 2016, of the 115 drivers in fatal wrecks who tested positive for marijuana use, 71 were found to have Delta-9 tetrahydrocannabinol, or THC, the psychoactive ingredient in marijuana, in their blood, indicating use within hours, according to state data. “
'Presumably, these figures came from the "National Highway Traffic Safety Administration, Fatality Analysis Reporting System (FARS) 2006-2011 and Colorado Department of Transportation 2012-2017," cited in a previous graphic.
'But CDOT's digits, which we shared last month, are completely different. They show that the number of fatalities involving a driver who tested positive for 5 nanograms or more of Delta-9 THC, the highly controversial state limit for cannabis intoxication, actually dropped from 2016 (52, or 13 percent of total drivers involved in fatalities who were drug tested) to 2017 (35, or 8 percent.)
'[...] plenty of other studies contradict the Rocky Mountain High Intensity Drug Trafficking Area's findings, too [...]'