Do police have to prove I meant to kill someone under the one punch law?

No. Section 314A of the Criminal Code (Qld) requires no proof of any intention to kill or to cause grievous bodily harm. The prosecution must prove an unlawful striking to the head or neck that caused death. That absence of an intention element is the central criticism of the offence.

Does a strike have to be a punch?

No. Striking covers the application of force to another person using any part of the body, with or without a weapon or instrument. A push, a headbutt or a strike with an object can all fall within the section, provided the force was applied to the head or neck and death resulted.

Crime

The one punch law in Queensland

Q: Can I get parole earlier than 80 per cent of my sentence?

Generally no. Where a court imposes a term of imprisonment for unlawful striking causing death, it must order that the person serve the lesser of 80 per cent of the term or 15 years before parole eligibility. Only limited statutory exceptions allow a different order to be made.

Q: Does the one punch law apply to sport?

There is a specific exclusion. A person is not criminally responsible if the act occurred as part of a socially acceptable function or activity and was reasonable in the circumstances. A death occurring in a sanctioned combat sport, where the participant stayed within the rules, is the clearest example.

Published 13 September 2021 · Updated 13 September 2021

What the section says

A person who unlawfully strikes another person to the head or neck and causes the death of that person is guilty of a crime.

The prosecution has to establish four things.

There was a striking.
It was unlawful.
It was to the head or neck.
It caused death.

Striking has a wide meaning. It covers the application of force to another person using any part of the body, with or without a weapon or instrument.

Causation can be direct or indirect. It covers a death at the scene and a death that follows from a condition or event set in motion by the strike, including a fall.

Unlawful means not authorised, justified or excused. In practice, if the striking happened and it was to the head or neck and death followed, the section applies unless a positive reason is found why it does not.

Note what is absent. There is no requirement to prove any intention to kill, to cause grievous bodily harm, or even to cause serious injury.

Why it exists

The offence was introduced in Queensland in 2014, after a series of incidents, typically at night and involving alcohol, in which a single blow to the head or neck killed someone.

The existing offences did not fit those facts well.

Murder requires an intention to kill or to cause grievous bodily harm. In most one punch cases that intention cannot be established.
Manslaughter was available in principle, but the prosecution still had to prove an unlawful killing on a basis that was often contested, and outcomes were seen as inconsistent with community expectations.

The response was a purpose-built offence with a low threshold for liability and a high penalty, designed to operate as a deterrent. The trade-off is that a person can be liable for life imprisonment without any proven intention to cause serious harm.

See our article on murder and manslaughter for how the two compare.

The mandatory minimum

This is the part that distinguishes the offence at sentence.

Where the court imposes a term of imprisonment, it must also order that the person serve the lesser of 80 per cent of the term, or 15 years, before being eligible for parole. Limited exceptions apply.

The consequence is that the usual sentencing tools are unavailable. The court cannot set a shorter non-parole period to reflect a plea of guilty, cooperation, youth or remorse in the way it can for other offences. Those matters can affect the head sentence but not the proportion to be served.

This is one of the clearest examples of mandatory sentencing in Queensland, and it remains contentious for that reason.

Defences

The first task is always to test whether the section actually fits the facts.

Was there a striking by the accused. Identification in a crowded venue at night is a genuine issue.
Was it to the head or neck. The section is specific. A strike to the body that causes a fall raises a different analysis.
Did it cause the death. Causation is frequently the real battleground, particularly where there was a pre-existing condition, an intervening event, or a delay between the incident and the death.

The sport and socially acceptable activity defence

The section provides that a person is not criminally responsible where the act occurs as part of a socially acceptable function or activity, and was reasonable in the circumstances.

The clearest example is a sanctioned boxing or martial arts contest where a participant dies and the person who struck them stayed within the rules of the sport.

Self-defence and defence of another

Available, and often the most realistic argument given how these incidents arise. The Criminal Code provisions on self-defence apply, and the analysis turns on what the accused reasonably believed and whether the force used was reasonably necessary.

The available defences are deliberately tighter than for other homicide offences, which is consistent with the deterrent purpose of the section.

If you have been charged

These matters are heard in the Supreme Court and the exposure is life imprisonment. Do not participate in a record of interview without advice.

CCTV, witness accounts and medical causation evidence all have to be obtained and analysed early, because the medical material in particular takes time and frequently determines the shape of the whole case.

See our pages on homicide charges and assault and violent offences.

Last reviewed 3 August 2026 by the TWC Lawyers team. Queensland penalty units and court fees are indexed on 1 July each year. Check current figures before you rely on them, or ask us.