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Akron grad students invent device to detect marijuana use by drivers


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AKRON, Ohio -- Two University of Akron students won a $10,000 inventors' award for developing a sensor that they say will allow police to determine in minutes if a driver is under the influence of marijuana.

Mariam Crow and Kathleen Stitzlein, graduate students in biomedical engineering, hope to eventually market their roadside testing device, the Cannibuster, to police in states where marijuana has been legalized, according to the university.

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With the legalization of marijuana, states have set 5 nanograms or less of THC, the active ingredient in marijuana, as the legal limit for drivers. But the technology to accurately measure levels of the chemical on the roadside does not exist, the students said.

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