Samenvatting
Although the use of ethanol, marihuana, and other drugs may be detrimental to driving safety, this has been established by direct epidemiological evidence only for ethanol. In this study, this incidence of detection of ethanol (and other volatile substances) , delta 9 tetrahydrocannabinol, barb turrets, cocaine and benzoylecgonine, opiates and phencyclidine were determined in an inclusive population of 600 verified single-vehicle operator fatalities.