Step toward Roadside Sensing Noninvasive Detection of a THC Metabolite from the Sweat Content of Fingerprints.
The sudden increase in states legalizing marijuana has forced law enforcement into a situation where the use and consumption are legal, but there are no limitations for what is acceptable for driving or operating machinery. Using ultraviolet-visible (UV-vis) spectroscopy, fingerprints from volunteers who had used marijuana were analyzed via a competitive immunoassay for the detection of Δ