As medical and recreational use of marijuana becomes more widespread, law enforcement tools like this will prove very useful. Hopefully this test for cannabis use will be as important a safeguard as the arrival of the breathalyzer almost 90 years ago. http://www.digitaltrends.com/cool-tech/marijuana-spit-test/?
A spit test that can tell if you’re driving stoned
(5 votes, average: 4.20 out of 5)
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