Over the past year, several tech companies have come forward with breathalyzers they claim can gauge marijuana impairment, but only one has argued the ability to distinguish between a regular user and a high driver.
Padres star infielder Everth Cabrera was booked on driving under the influence of marijuana early Wednesday morning, TMZ reported.
New York teenager Joseph Beer smoked marijuana, climbed into a Subaru Impreza with four friends and drove more than 100 mph before losing control. The car crashed into trees with such force that the vehicle split in half, killing his friends.
The legalization of recreational marijuana in two states and medical marijuana in more than 20 others has raised concern that there will be more drivers stoned behind the wheel. Here's five things to know about marijuana and driving: