Alcohol and drug addiction are serious problems across the world. Moreover, these problems do not discriminate between skin color, ages, cultural background, or religion. In Australia, just like any other country in the world, both legal and illegal drugs pose a serious challenge for law enforcement officers, health workers, families, workplaces, and universities. Substance abuse contributes to serious financial, physical, psychological, and social problems, which affect a lot of people. It is estimated that over 14% of Australians use alcohol and drugs. The common drugs abused include cannabis, ecstasy, painkillers, and cocaine.