Does CBD show up on a drug test? Tests show bootleg marijuana vapes tainted with hydrogen cyanide TCU Police Department Curious about how THC testing works? Join Officer Long in this informative reel as he demonstrates the process of testing a vape for THC. Instagram Police using new drug test to determine if drivers are high Student in Possession of Three Vaping Devices Containing THC: On November 24, a school administrator at Henry E. Lackey High School became aware of a student in possession of a vaping device. Testing Drivers for Marijuana vs. Alcohol: What's the Difference? MassDefense