Petty Crimes vs Serious Crimes: What’s the Technical Difference?

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Most people assume the line between a petty crime and a serious crime comes down to common sense, something feels minor, something else feels major. In Western Australia, though, the distinction is set out in law, and it shapes almost every part of how a case unfolds, from which court hears it to what penalty a person is facing.

How Western Australia Classifies Criminal Offences

WA law splits offences into two broad categories: summary offences and indictable offences. Summary offences are considered less serious and are dealt with in the Magistrates Court, usually resolved faster and with lighter penalties. Indictable offences are more serious and can be heard in the District Court or Supreme Court, depending on the charge.

Some offences sit in between. These are called “either way” offences, and prosecutors or magistrates can decide whether they proceed summarily or as indictable matters, often based on the circumstances surrounding the offence.

What Counts as a Petty Crime

Petty crimes are generally low-level offences that cause limited harm and carry lighter consequences. Common examples include:

  • Minor theft or shoplifting
  • Disorderly conduct
  • Low-range traffic offences
  • Minor property damage

Penalties for petty crimes typically involve fines, community-based orders, or short good behaviour bonds. A criminal record may still result, but the long-term impact tends to be less severe than with indictable matters.

What Counts as a Serious Crime

Serious crimes involve greater harm, higher culpability, or significant risk to others. These include offences like:

The penalties reflect that seriousness. Serious offences can carry lengthy imprisonment, substantial fines, and a criminal record that follows a person for years, affecting employment, travel, and professional licensing.

What Determines Where a Charge Falls

Several factors influence whether a charge is treated as petty or serious:

  • The value of property involved or extent of harm caused
  • The intent behind the act, whether premeditated, reckless, or accidental
  • Prior criminal history, particularly for repeat offending
  • Aggravating circumstances, such as use of a weapon, targeting a vulnerable victim, or committing an offence while on bail

Why the Distinction Matters

The classification of an offence affects almost every stage of the legal process. It determines which court hears the matter, what rights and procedures apply, and how much is at stake for the person charged. Someone facing a summary offence might resolve their matter in a single court appearance, while an indictable charge can involve a much longer, more complex process with far greater consequences.

Understanding where a charge sits also shapes the kind of legal representation a person needs. A minor offence may only require straightforward advice, while a serious charge calls for experienced criminal defence from the outset.

Getting the Right Legal Advice

Whether a charge is petty or serious, the outcome can have lasting effects on a person’s life. Podmore Legal has experience across the full range of WA criminal matters, from minor summary offences to serious indictable charges, and can advise on the best path forward from the first conversation.

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Justin Podmore

Justin Podmore is a highly regarded barrister and solicitor with over 20 years of experience in law and business. Based in Perth, he’s known for his work in criminal defence, having led complex cases involving terrorism, drug offences, and violent crime.