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OftenBen · 2521 days ago · link · · parent · post: Scientists Still Seek A Reliable DUI Test For Marijuana
Marilyn Huestis doesn't know shit if she is stating that they are measuring 'THC in the blood.' When you test people for cannabis, you test their blood for cannabinoid metabolites, not psychoactive delta-9 THC. I don't actually know if it's possible to test for cannabinoids, considering the body makes them naturally. It's possible that she's 'translating' things a bit for laymen.