“…As we observed an increase in requests for GHB analysis, the drug was incorporated into the GC-MS urine illicit drugs screen in May 2012. This screen is performed on approximately half of all cases received (A total of 709 cases received in 2011, 8 Femoral blood samples from individuals with detectable GHB in their urine were subsequently analysed for GHB. If no urine was received, blood analysis was determined based on the history received with the case.…”