The difficulty with [blood testing] is police typically need a judge’s approval for a search warrant, and then need a trained phlebotomist to draw the blood, a process that can easily take a couple of hours. By then, studies show, most of the THC in blood has already dissipated, even though the person may still…

“The thing that’s groundbreaking about this test is it can distinguish recent use from historic use,” Mr. Boxer said. “An employee in many states has a legal right to use cannabis.” View the full article here >

“A test like that would frankly make sense,” Armentano [deputy director of the National Organization for the Reform of Marijuana Laws] said. “Just like we wouldn’t allow employees to have a couple drinks and show up to work.” View the full article here >

“It’s a game changer,” said John Hudak, a senior fellow at the Brookings Institution who has written extensively on marijuana legalization. View the full article here >

“I actually do see it as benefiting all parties,” he told the Bee. Most tests currently used by employers reveal marijuana use stretching back as far as 30 days, meaning workers could be penalized in some cases even if they are not high on the job. View the full article here >

As more states legalize recreational marijuana, law enforcement is hoping to detect those driving under the influence. NBC News received an exclusive look at a new breathalyzer, tested by officials on the streets over Labor Day weekend. NBC’s Stephanie Gosk reports for TODAY. View the full article here >

FOX Business’ Susan Li breaks down a new report on marijuana breathalyzers that detects pot-use within three hours. Watch the latest video at foxnews.com View the full article here >

The device would be able to test if someone had smoked within the past three hours. Some locals […] say that marijuana breathalyzers could crack down on impaired driving and it could be beneficial to businesses. View the full article here >

Developing the breath test has been “amazingly challenging science,” but building a device to do it has grown exponentially more important as more and more jurisdictions legalize both medical and recreational marijuana use, Lynn said. View the full article here >

Lynn said he expects the Hound Labs device will also be used in the workplace, where employers can ensure that workers are not high on the job, and employees won’t face sanctions if they partied the day before. View the full article here >