In organizations rather than sending potential employees (or employees chosen for random testing) to a clinical laboratory, some employers have begun performing their own on-site drug testing. Benefits of on-site drug testing include cost, convenience and accuracy.
Starting from the second quarter in 2007, there is significant growth in the number of home drug testing kits sold. There are many types of drug testing kits available in the market. Those are helpful for drug trusting at working environment also to use at home.