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Alcohol and drugs

Mum and baby

Don’t drive if you’ve been drinking alcohol or taking drugs. Alcohol and drugs can affect your ability to drive safely, and increase your chances of having a serious crash. 

The police can stop you in your car and test you. If you fail the test you will lose your licence and be fined heavily. For an information sheet about alcohol and drug screening, click here.

If you’re planning on a big night out, make sure you don’t have to drive home. Arrange a lift or stay at a friend’s house. It’s much safer.

  • It’s against the law to refuse to take a breathalyser or other alcohol test when asked to by a police officer.
  • If you’ve been drinking, you have to allow time for the alcohol in your blood to reduce before you drive. If you've had a big night out, you could still be over the legal limit next morning. Sleep it off, and make sure you’re okay before driving.
  • Don't combine alcohol with drugs or other medicines. Even small amounts of alcohol taken with drugs or medications can affect your ability to drive. This applies to medicines prescribed by your doctor, and bought in a supermarket or chemist.
  • Drink driving is one of the main causes of road deaths in South Australia. Research shows that alcohol affects driving skills, and increases the chance a driver will engage in risky behaviour.
  • Alcohol and drugs affect people differently. Body size, body fat, gender, level of fitness and other factors can all make a difference.
  • You don't have to feel drunk to be affected by alcohol. You might feel normal, but research shows that a driver's risk of crashing doubles for every increase of 0.05 above zero blood alcohol concentration.
  • Drivers - and qualified supervising drivers travelling with a learner driver - can be stopped at random by any police officer at any time, anywhere in South Australia, and tested for alcohol and drugs.