impairment

Cannabis-friendly Colorado doctors want to help you understand how difficult it is to measure cannabis impairment by testing your blood and saliva – both before and after you get high. Cannabis Clinicians Colorado, a nonprofit group dedicated to supporting caregivers, patients and physicians...

A committee convened by the Maine Department of Public Safety says it doesn't believe that Maine needs to set a limit for determining whether a motorist is impaired by marijuana. The recommendation is likely to stir debate among law enforcement officials and legislators as implementation of the...

While Vermont has been moving towards becoming the first state to legalize recreational marijuana through the legislature – as opposed to through a voter initiative – some proponents of legalization have advocated learning from the experience of states that have already legalized marijuana...

No scientific basis exists to legitimize current THC testing in place in five states who base their impaired driving standards on THC levels in blood. According to a study from auto club giant AAA's safety foundation, a blood test threshold for THC - the chemical component of cannabis that makes...