Massachusetts is entering a new era in terms of legalized marijuana. A number of states have legalized marijuana use for medical purposes and now Massachusetts, Nevada, Maine and California will join Colorado, Washington, Oregon, Arizona, Alaska and Maine in legalizing it for recreational use.
One of the controversies over its legalization is how it affects driving behavior. While marijuana use may be legal in Massachusetts, it is not legal to drive while impaired or under the influence of a drug (OUI). All states have laws making it unlawful to drive under the influence of alcohol or to engage in drugged driving. A blood or urine sample can detect the presence of certain drugs if specifically tested for that drug. Also, police officers trained in drug recognition can detect symptoms of drug use in drivers that can provide probable cause to test the motorists for the presence of drugs in their blood system.