Opiate and cocaine use in Hawaii are up compared to last year, according to second quarter workplace drug testing results released by Diagnostic Laboratory Services on Friday. Positive tests for opiates were up 6.9 percent and cocaine increased 18 percent compared to Q2 2017. Marijuana use was down 1.8 percent year over year, while synthetic urine was up 1.7 percent compared to last year. Month to month, DLS said marijuana use declined 4 percent from Q1 to Q2 2018, and synthetic urine use increased...
