Porirua, New Zealand–(ENEWSPF)–April 3, 2014. Marijuana-positive drivers possess a slightly elevated risk of accident compared to drug and alcohol free divers, but this risk is not positively correlated with higher blood/THC levels, according to the results of a crash culpability analysis published online in the journal Accident Analysis and Prevention.
New Zealand researchers assessed the risk of accident associated with drivers who tested positive for the presence of drugs or alcohol in their blood compared…






