Peichen Chang of Engineered Medical Technologies demonstrates a device called a tCheck which measures the level of cannabinoids, such as THC. Randall Benton The Sacramento Bee
Peichen Chang of Engineered Medical Technologies demonstrates a device called a tCheck which measures the level of cannabinoids, such as THC. Randall Benton The Sacramento Bee

Public safety agencies launch drugged driving campaign in advance of legalized marijuana

December 27, 2017 04:42 PM