Breath is the only place in the body where THC remains for just a few hours after smoking, which makes it a much more useful indicator of recent use and possible impairment than any other THC drug test.   View the full article here >

The short answer is, it depends. Several drug testing methodologies exist today, and they all detect past usage of marijuana over different time frames. Before we delve deeper in the specifics, let’s first agree on what we mean by a detection window. What is a drug detection window? A drug detection window is simply the…

A California company called Hound Labs is developing a marijuana breathalyzer that detects whether a user smoked or consumed cannabis in the past few hours.   Watch the Video Here

Dr. Lynn explains why breath – where THC stays for just 2-3 hours after smoking – is the best way to measure recent marijuana use.

“Since blood tests don’t tell how long THC has been in a person’s system, [Dr. Lynn] is helping develop a marijuana breathalyzer test.” -Read Full Article

“Mass spectrometry has been the gold standard for making laboratory measurements on breath samples because of the tool’s extreme sensitivity. But, because mass spectrometry devices are large, expensive instruments – table-top or even larger – they’re not practical to take into the field. That’s why, Heanue says, Hound Labs developed a technique that is portable…

Part of the circuit involved a simulated cyclist popping out of nowhere, as cyclists sometimes do, and, Lynn reported, “all of them hit that cyclist when they were stoned, and most of the time, they didn’t even know they’d hit him.” -Read Full Article

Both [blood and urine] can provide evidence that you’ve been using marijuana — so if possession or use is illegal, then the police might have a case. But if you’re in one of the 29 states that, along with Washington D.C., allow some of kind of pot use, then it’s impairment while driving they’re after.…

Both [blood and urine] can provide evidence that you’ve been using marijuana — so if possession or use is illegal, then the police might have a case. But if you’re in one of the 29 states that, along with Washington D.C., allow some of kind of pot use, then it’s impairment while driving they’re after.

The company will also target employers wanting to use the device to measure whether workers are impaired on the job instead of whether employees may have smoked (legally) days or weeks earlier but are not impaired at work. -Read Full Article