Weed spit test can detect if you're driving high in 3 minutes

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A new speedy spit test could be the breathalyzer’s counterpart when it comes to roadside testing for marijuana. The technology, developed by Shan Xiang Wang from Stanford University, can detect the presence of THC (the main chemical in weed that make…

Source: Engadget – Weed spit test can detect if you’re driving high in 3 minutes