As the number of registered medical cannabis patients in Australia continues to grow, there is a pressing need to look critically at the current approach to cannabis and driving.

There is a very good body of evidence showing that levels of THC in the body do not correspond well to a person’s level of impairment, the amount of cannabis consumed or the time when it was consumed. This raises serious concerns around the suitability of the current random drug testing approach for patients who are using prescribed medical cannabis.