Across the United States, many employers include drug screening as an integral part of their hiring process. These employers believe that only a drug-free workplace can increase productivity and make ...

For decades, police have used breathalyzers to test for alcohol, but they don’t have a reliable tool to measure marijuana use. That could change soon. Researchers are working to develop a breathalyzer ...

Arizona dispensaries are required to test cannabis products for potency and contaminants. Testing regulations, implemented in 2020, cover potency and contamination from microbials, heavy metals and ...