But the need for special master Joseph Lisa to re-do his report under the revised standard means the Supreme Court is unlikely to come up with a ruling in "Olenowski" until the fall, said defense ...

Getting behind the wheel after cannabis use is on the rise in the US, and THC, not alcohol, is now the most commonly detected intoxicant in US drivers. Detecting levels of THC, however, is challenging ...

SAN FRANCISCO (KGO) -- Soon voters will get a chance to decide on whether to legalize marijuana. Police are worried if the proposition passes in November it could affect all of our safety on the roads ...

There's still no great way to test for levels of THC in drivers and even if it's there, that doesn't necessarily mean the person is impaired. Law enforcement agencies are preparing for what they fear ...

Although it’s never a good idea to smoke weed in front of a police officer, let alone get behind the wheel right after – that’s exactly what people were doing with the Adams County Sheriff’s Office ...

Most roadside tests for stoned driving in the United States currently involve a verbal assessment, and nothing equivalent to the Breathalyzer for alcohol exists yet for cannabis. A British company ...

As Florida voters consider legalizing marijuana in November, opponents are painting a scary picture of what might happen: an epidemic of stoned driving that will make the state’s roads more dangerous ...

Although some people have objected to the levels of THC — the chemical component of marijuana that makes you high — allowed in the blood under the recently passed bill to regulate driving under the ...

Less than two weeks after recreational pot stores opened their doors in Colorado, proponents of legalization appeared to have their first black eye. A 23-year-old named Keith Kilbey, seemingly under ...

Like many medical marijuana patients, Greg Duran says he drives in fear, knowing he could be busted at any moment for driving under the influence. As he merges onto Interstate 70 north of Denver, ...

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After wading into a controversy over New Jersey's technique for spotting stoned drivers, the Supreme Court has directed that the Daubert standard for evaluating expert testimony should replace the ...