420 with CNW — Researchers Find That THC Blood Tests Don’t Detect Impairment
New research has found additional evidence that THC levels detected in the breath or blood of marijuana users isn’t a dependable impairment indicator. The scientists discovered that THC levels in the breath and blood didn’t offer dependable evidence of how recently an individual had used marijuana. For their study, the researchers recruited test subjects that were mostly individuals whom were daily marijuana users as test subjects. The researchers then determined the levels of THC in their breath and blood before and after each of them inhaled marijuana. Before they inhaled marijuana, most of the participants had residual levels of THC…

















