Police can randomly stop you any time, anywhere in South Australia and test you for illicit drugs. Roadside drug tests can detect the active ingredient in Cannabis, Ecstasy, Speed, Ice or Crystal vMeth. Unlike with alcohol testing, the volume of the drug in the system cannot be detected but since there is a zero tolerance to illegal drugs, presence results in prosecution.
The drug testing device is able to detect THC (Cannabis) for at least 5 hours after use. This may be even longer depending on the amount and potency of the cannabis taken and the individual’s metabolic rate.
Methylamphetamine (Speed, Ice or Crystal Meth) and MDMA (Ecstasy) can be detected for at least 24 hours after use. Again, the exact time will vary depending on the size of the dose, other drugs taken at the same time, as well the individual’s metabolism.
When undergoing a drug driving test, you will be required to wipe the testing device over your tongue to obtain a sample of your saliva. The test takes about 5 minutes and if the result is positive you will be required to provide a further oral fluid sample for analysis in a drug bus or at a police station. If your test is negative, you'll be free to go.