POSTED: Monday, February 13, 2012 - 4:36pm
UPDATED: Tuesday, February 14, 2012 - 2:40pm
A new study warns that driving under the influence of marijuana could have deadly consequences.
The study marks the first time researchers have looked at the risks of marijuana on driving, separately from alcohol and other substances.
The results show that drivers who use pot within three hours of driving are almost twice as likely to be involved in a car crash.