From Blacklistednews:

A marijuana breathalyzer will begin clinical trials early next year, the Oakland, California-based Hound Labs Inc. announced this week.

“The idea is that law enforcement will have one device out on the road to test for both THC [a marijuana component] and alcohol,” said Hound Labs CEO and founder Dr. Mike Lynn, an emergency room physician at Highland Hospital, in Oakland.

Typically, measuring the level of tetrahydrocannabinol (THC) — the psychoactive component in cannabis that gives users a “high” — is done using urine, blood, or saliva tests. The results can show if marijuana has been used in recent days or weeks, but they are not a very accurate way to measure real-time impairment, said Lynn.

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