Is there an “assault with a weapon” offence in Victoria?
No. Victoria has no single offence with that name, which surprises many people. Instead, a weapon works as an aggravating feature that pushes an assault up the ladder of charges, and understanding what happens after being charged is the starting point for seeing where your matter sits. The same incident, with and without a weapon, can produce very different charges and very different penalties.
That is why the first question is never simply “was there a weapon,” but what the weapon was used to do. A weapon waved as a threat, a weapon used to cause a cut, and a weapon planned and used to cause a serious wound are three different legal situations, each with its own offence and its own maximum.
How does a weapon change an assault charge?
It lifts the charge to a more serious level. A push or a threat with no injury and no weapon is usually common assault under the Summary Offences Act, a summary matter carrying a maximum of 15 penalty units or 3 months. Add a weapon, or an intent to commit a further offence, and the same conduct can be charged as statutory assault under section 31 of the Crimes Act 1958, which carries up to 5 years.
The shift is dramatic, from a matter measured in months to one measured in years, and from a summary offence to an indictable one. If you have been charged after an incident involving a weapon, it is worth reading our overview of assault charges in Victoria to understand how these matters are graded and run.
What if the weapon was used to cause injury?
Then the charge steps up again, and the penalties rise sharply. Where a weapon is used to cause injury, the matter is usually charged as causing injury, carrying up to 10 years if intentional and 5 years if reckless. Where the harm is serious, the charge becomes causing serious injury, carrying up to 15 years if reckless and 20 years if intentional.
At this level the presence of a weapon does two things at once. It supports the more serious charge, and it operates as an aggravating factor the court weighs at sentencing. This is squarely serious indictable territory, and if you are in custody it helps to understand bail for a serious offence and why these applications are harder to win.
When does a weapon trigger “gross violence” and a minimum term?
When it is planned and then used to cause serious injury. Under the Crimes Act, causing serious injury “in circumstances of gross violence” is a distinct and more serious offence, and one of the listed circumstances is that the person planned in advance to have with them, and to use, an offensive weapon, firearm or imitation firearm, and in fact used it to cause the serious injury.
The consequence is significant. The intentional form carries a maximum of 20 years and the reckless form 15 years, and both carry a statutory minimum non-parole period of 4 years unless the court finds a special reason. The Victorian Law Reform Commission sets out how these offences against the person fit together, which shows just how far a weapon can move a charge.
How do the charges and penalties compare?
The table below sets out the ladder, from a minor assault with no weapon to a weapon planned and used to cause serious injury. It shows why the weapon, and what it was used for, changes everything about the charge.
| Situation | Likely charge | Maximum penalty |
| Threat or force, no injury, no weapon | Common assault (Summary Offences Act) | 15 penalty units or 3 months |
| Assault with a weapon or intent | Statutory assault (s31 Crimes Act) | 5 years |
| Weapon used to cause injury | Cause injury (s18) | 5 to 10 years |
| Weapon used to cause serious injury | Cause serious injury (s16/s17) | 15 to 20 years |
| Weapon planned and used to cause serious injury | Gross violence (s15A/s15B) | 20 years plus 4-year minimum |
| The weapon itself | Control of Weapons Act 1990 | 1 to 2 years |
Where your matter lands on this ladder is the single most important question, because it sets the maximum, the court, and whether a minimum term applies. Getting an accurate read on the charge, and arguing for the right level, is where careful defence work on charges makes the most difference.
Is the weapon itself a separate charge?
Often, yes, and it can be laid on top of the assault. The Control of Weapons Act 1990 creates possession offences for controlled weapons, such as a knife, and prohibited weapons, such as a flick knife or knuckle-dusters. Carrying a controlled weapon without lawful excuse can attract up to 120 penalty units or 1 year, and a prohibited weapon up to 240 penalty units or 2 years.
This means an incident can produce two sets of charges, one for the assault and one for the weapon. Our practice in firearm and weapon charges deals with both together, because how the weapon charge is handled can affect the assault, and the reverse.
How are these charges defended?
By testing every element the prosecution must prove. A weapon charge is not proof of an assault, and an assault charge is not proof of intent. Real defences include self-defence, a genuine dispute about what happened, a challenge to whether the object was used as a weapon at all, and identity. The aim is often to have the charge assessed at the right level rather than the highest one available.
Because the stakes rise so quickly on this ladder, the early strategy matters. Our work on assault and violence charges focuses on the charge level from the outset, since moving a matter down even one rung, from serious injury to injury, or from gross violence to a standard charge, can change the outcome entirely.
