Under a business’s duty of care, you have a responsibility to identify potential safety risks in your workplace and either eliminate or reduce that risk. Drugs and Alcohol in most high risks industries is recognised by the code of practice to be a safety risk. A business must be able to demonstrate what steps it has taken to address its duty of care regarding this specific risk. Having a compliant policy and a regular testing program in place is paramount if you are to be able to demonstrate you are addressing this risk. It is recommended testing at least 25% of your staff annually on a random basis. This is best completed on numerous occasions, as opposed to once per annum, as it become unpredictable sending your staff a clear message that they can be tested anytime not just once annually or a set intervals.