Traffic Offences in South Australia

Criminal legal

This article provides a guide to traffic law offences in South Australia, detailing the types of offences, the process of laying charges, the court proceedings, possible penalties, consequences of conviction, and potential defences.

Traffic laws are designed to maintain order and safety on the roads. In South Australia, traffic offences are treated seriously, and penalties can range from fines to imprisonment.

Types of Traffic Offences in South Australia


Driving at a speed that exceeds the posted speed limit or is inappropriate for the road conditions.

Drink Driving

Driving with a blood alcohol concentration above the legal limit.

Drug Driving

Driving under the influence of prohibited drugs or with a prescribed drug present in the blood or saliva.

Dangerous Driving

Driving in a manner that is dangerous to the public.

Careless Driving

Driving without due care or attention to other road users.

Unlicensed Driving

Driving without a valid driver’s license.

Driving While Disqualified

Driving while your license is suspended or disqualified.

Failure to Stop at a Stop Sign or Traffic Light: Failing to stop at a stop sign or red traffic light.

Using a Mobile Phone While Driving

Using a mobile phone while driving, unless the phone is being used hands-free.

Not Wearing a Seatbelt: Failing to wear a seatbelt while the vehicle is in motion.

How Charges Are Laid

  1. On-the-Spot Fine: For minor offences, the police may issue an on-the-spot fine, also known as an expiation notice. This allows the offender to pay a fine without having to go to court.
  2. Notice to Appear: For more serious offences, the police may issue a notice to appear in court. This requires the offender to attend court on a specified date to answer the charge.
  3. Arrest: In more serious cases, the police may arrest the offender and take them into custody. The offender will then be required to appear in court.

The Court Process

  1. First Appearance: The offender will first appear before a magistrate in the Magistrates Court. During this appearance, the offender will be asked to enter a plea of either guilty or not guilty. If a guilty plea is entered, the court may proceed to sentencing. If a not-guilty plea is entered, the matter will be scheduled for trial.
  2. Trial: During the trial, the prosecution and defence will present their cases. The prosecution must prove beyond a reasonable doubt that the offender committed the traffic offence. The defence will present evidence or arguments to refute the prosecution’s case or to mitigate the offender’s actions.
  3. Verdict: After hearing all the evidence, the magistrate or judge will deliver a verdict of either guilty or not guilty.
  4. Sentencing: If the offender is found guilty, the court will proceed to sentencing. The sentence may vary depending on the severity of the offence, the offender’s driving history, and any other mitigating or aggravating factors.

Possible Penalties for traffic offences in South Australia

The penalties for traffic offences in South Australia vary depending on the nature and severity of the offence. Penalties may include:

  1. Fine: A monetary penalty imposed by the court.
  2. Demerit Points: Points added to the offender’s driving record. Accumulating too many demerit points can lead to license suspension.
  3. License Suspension or Disqualification: The offender’s driver’s license is suspended or disqualified for a specified period.
  4. Imprisonment: A term of imprisonment, either suspended or immediate.

Consequences of Conviction for a Traffic Offence

A conviction for a traffic offence can have long-lasting consequences, including:

  1. Criminal Record: A conviction for a traffic offence will appear on the offender’s criminal record.
  2. Increased Insurance Premiums: A conviction for a traffic offence may lead to increased insurance premiums.
  3. Loss of Employment: Some employers may terminate employment or not hire someone with a traffic offence conviction.
  4. Ineligibility for Certain Jobs: Some jobs may be unavailable to individuals with certain traffic convictions, such as jobs that require a clean driving record.

Possible Defences to Traffic Charges

There are several possible defences to traffic charges, including:

  1. Necessity: The offender was forced to commit the offence due to an emergency situation.
  2. Duress: The offender was forced to commit the offence under threat of harm.
  3. Mistake of Fact: The offender was under a mistaken but reasonable belief that would make the act non-criminal.
  4. Lack of Intent: The offender did not intend to commit the offence.


Traffic offences in South Australia cover a range of behaviours, from speeding and drink driving to dangerous and careless driving. Understanding the different types of offences, the process of laying charges, the court proceedings, and the potential consequences is crucial for anyone involved in a traffic offence case. It is always recommended to seek legal advice to navigate the legal system effectively and ensure your rights are protected.