420 with CNW — Federal Study Concludes Breathalyzers Are Unreliable as Recent Cannabis-Use Tests
A recent study funded by the federal government highlights the challenges associated with developing a cannabis breathalyzer. The research, conducted by National Institute of Standards and Technology (NIST) and Colorado Boulder University, demonstrates that determining recent marijuana use based on THC levels in breath is highly unreliable due to inconsistencies. The study, published in the “Breath Research” Journal, involved 18 participants from Colorado who consumed retail marijuana with approximately 25% THC. Breath and blood samples were taken 15 minutes before and one hour after smoking marijuana, using a well-equipped white van conveniently parked outside their homes. The analysis was conducted…

















