Editor’s note: This the second part of a three-part series on legal marijuana’s emerging effects on trucking and transportation. Read the first part here. Alcohol impairment is binary: You are either ...

A new study led by a team from the University of Colorado, Boulder, has found smoking high-THC marijuana or concentrates does not result in greater levels of intoxication. The research adds weight to ...

Lost in the debate this year over the full legalization of marijuana by adults are the ramifications of misuse. While there are precise ways to measure the influence of alcohol on drivers, marijuana ...

How to measure cannabis intoxication has been an unsolvable equation, despite the spread of legalization. Roadside blood tests and breathalyzers can detect THC in our bodies, but tolerance and time of ...

CLEVELAND, Ohio — When it comes to enforcing drunken driving laws, police have a battery of tools at their disposal. Field sobriety tests, along with breath, blood, and urine tests for blood alcohol ...

Marijuana use leads to small cognitive impairments that may continue beyond the period of intoxication. That’s according to a new study recently published in the journal "Addiction." Researchers ...

NOTE: A version of this story first appeared in New York Cannabis Insider, a new publication covering the state’s marijuana marketplace. NYCI is hosting a half-day virtual event on March 31 about ...

In handing out a harsh sentence to a driver who smoked marijuana before she collided with a motorcyclist and killed him, Judge Rosemarie Aquilina is making an example of her. The lesson: Don’t smoke ...

Landlords can't prohibit marijuana use or possession Workers can't be fired for using pot after work, so long as they're not intoxicated on the job Now that recreational marijuana is legal in Rhode ...

Some Massachusetts veterinarians warn they are seeing increasing numbers of dogs suffering from THC intoxication, mostly by getting into their owners’ marijuana edibles, following the state’s ...