Why the latest news on marijuana and car crashes has some experts skeptical

What marijuana legalization did to car accident rates

Feds seize product meant to keep marijuana away from kids

California police wary of drugged-driving surge with marijuana legalized

Drugged-driving deaths eclipse drunken-driving for first time

Marijuana raids are deadlier than the drug itself

Driving while high: What to expect if you’re pulled over

Potentially lethal bacteria, mold found on some cannabis samples