STUDY FINDS THC DETECTED IN BLOOD OR BREATH DOES NOT INDICATE IMPAIRMENT
Since 2018, we have been stating that employment drug testing standards need to change. The levels they test for are far below intoxicating levels. We realized this firsthand with our Full Spectrum line of products that contain trace amounts of THC and our internal testing/existing research to help answer your urinalysis questions and concerns. That trace amount of THC is helping people in incredible ways, specifically in regards to pain and sleep, but many cannot use the products due to drug testing for levels of THC that are NON-INTOXICATING. Hopefully this is the beginning of changing the standard, but we do know it is the beginning of major headaches for those attempting to prosecute people for cannabis related DUIs.
Neither the detection of THC in blood nor in breath is correlated with impairment of performance or recency of cannabis exposure, according to data published in the journal Nature Scientific Reports.
“These findings provide further evidence that single measurements of specific delta-9-THC blood concentrations do not correlate with impairment, and that the use of per se legal limits for delta-9-THC is not scientifically justifiable at the present time.”
NORML has long advocated against the imposition of THC blood thresholds as predictors of impairment, and per se traffic safety limits in particular, because they are not consistently correlated with changes in subjects’ performance. Alternatively, NORML has called for the expanded use of performance-based tests, like DRUID.
About a dozen US states have incorporated either per se or zero-tolerant per se standards into their traffic safety laws.
They concluded, “[W]e present further evidence that single measurements of delta-9-THC in blood cannot establish impairment [and] that single measurements of delta-9-THC in exhaled breath likewise do not correlate with impairment.”
Full text of the study, “Indeterminacy of cannabis impairment and delta-9-tetrahydrocannabinol levels in blood and breath,” appears in Nature Scientific Reports.
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