How long weed stays in your system depends on the type of drug test being used and how frequently you use cannabis.

University of Texas at Dallas researchers have developed a hand-held rapid saliva test that can measure the level of THC, the major active component in marijuana, with 94% accuracy. The device, called ...

CINCINNATI (WKRC) - As Ohio moves closer to the first legal sale of recreational marijuana, there are still questions over how police can tell if someone’s driving under the influence. State lawmakers ...

The 4/20 holiday is this weekend. And if you choose to celebrate, please do so safely. But also, in states like Texas — where the substance is still illegal — it's essential to be wary of a drug test ...

The cannabis world can be an uncertain place. Often, a lack of understanding comes from a dearth of clinical research into cannabis studies. But many countries around the globe have increased cannabis ...

The Ohio Senate has unanimously approved a bill that would update the state's OVI laws when it comes to marijuana. The update is necessary, attorney Charles Rowland of Dayton DUI told this outlet, ...

CINCINNATI (WXIX) - Ohio law enforcement officers may soon have a new tool to detect THC levels in drivers. Recreational marijuana is legally available in Ohio as of Aug. 6. Law enforcement agencies ...

Marijuana, and the tetrahydrocannabinol levels that make someone feel high, is legal for recreational purposes in three of Indiana’s four neighboring states. But figuring out when someone is too high ...