Drug Driving

The effects of illicit and prescription drugs on drivers are varied, from giving the driver false confidence to slowing down reaction times, ultimately putting others at risk.

In Western Australia, drivers can be subject to roadside drug tests, with the aim to reduce the risk posed by drug drivers on WA roads.

of those killed were found to have an illegal drug in their system.


increase in fatalities with an illegal drug in their system between 2014 and 2015.


Please visit the road rules and penalties section for information on drug driving laws.

Drugs and driving

Driving under the influence of illicit or prescription drugs impairs your ability to operate your vehicle safely and puts other road users at risk.

The effects drugs have on your driving ability include the following:
  • Gives the driver a false confidence, increasing risk-taking behaviour.
  • Slows the driver's reaction time.
  • Distorts the driver's visual perceptions.
  • Decreases ability to coordinate reaction when driving.
  • Causes the driver difficulty in judging distances.
  • Can increase the risk of having a crash.
For more information, visit the Drug Aware website.

Community Alcohol and Drug Services

Free and confidential alcohol and drug treatment is available to individuals and their families in Western Australia. Find your nearest community alcohol and drug service via the Mental Health Commission.