Murder

Serious Murder Allegations Require Strong Criminal Defence
Murder charges are serious and complex. It involves the unlawful killing of another person with intent and is prosecuted under section 18(
1)(
a)
of the Crimes Act 1900 (NSW). A conviction for murder carries the most severe penalties available in the criminal justice system, including the potential for life imprisonment.
Key points to understand:
- Unlawful killing with intent to kill or cause serious harm
- Prosecuted under section 18
(
1)(
a)
of the Crimes Act 1900 (NSW) - Maximum penalty includes life imprisonment
- One of the most serious criminal charges in Australia
If you or someone you know is facing a murder charge, it is essential to obtain immediate legal advice. At Brightstone Defence, our experienced criminal defence lawyers provide strategic representation, guiding you through every stage of the legal process to protect your rights and achieve the best possible outcome. Contact us today for confidential advice and strong defence.
Under Section 18 of the Crimes Act 1900 (NSW), murder is defined as the unlawful killing of another person with:
- Intent to kill
- Intent to inflict grievous bodily harm
- Reckless indifference to human life
- Causing death during the commission of a crime punishable by at least 25 years imprisonment (constructive murder)
In the Australian Capital Territory (ACT), the definition is similar, but the charge is governed by the Crimes Act 1900 (ACT). Although there are subtle differences in terminology, the essential elements of the offence remain consistent across jurisdictions:
- Intent to kill or cause grievous bodily harm
- Recklessness or indifference to human life
Each Australian jurisdiction has similar definitions, with minor variations in terminology and procedure.
Elements the Prosecution Must Prove
To secure a murder conviction, the prosecution must prove beyond reasonable doubt:
- The victim has died
- The accused caused the death through an act or omission
- The act was done with:
- Intent to kill; or
- Intent to cause serious bodily harm; or
- Reckless indifference to human life; or
- While committing another serious offence (constructive murder)
The prosecution must also exclude any valid legal defence raised by the accused.
Possible Defences
Several complete or partial legal defences may apply, depending on your circumstances:
- Self-defence: You acted to protect yourself or another from serious harm.
- Duress: You were coerced into committing the act due to a serious threat.
- Necessity: You acted to prevent a greater harm.
- Automatism (Unconscious or Involuntary Acts):
- Your conduct was not voluntary (e.g. due to sleepwalking, seizures, or trauma-induced dissociation).
- Must be caused by external factors and not a mental illness.
- Requires medical evidence to support the claim.
- Mental Illness:
- You were suffering from a psychological condition at the time that impaired your ability to understand the nature of your actions or that your actions were wrong.
- May lead to a special verdict of not guilty by reason of mental illness and possible detainment in a mental health facility.
- Provocation (Partial Defence):
- Can reduce a murder charge to manslaughter.
- Must show the deceased’s conduct provoked an extreme emotional response.
Each case is different. Our experienced team at Brightstone Defence can assess the best defence strategy for your case.
Potential Penalties
Murder carries a maximum penalty of life imprisonment. Sentencing outcomes depend on the case's specific circumstances, including:
- The level of intent and planning
- The vulnerability of the victim, such as children or emergency workers
- Presence of aggravating or mitigating factors
In NSW, murder of public officials, including police officers, may carry a standard non-parole period of 25 years. Similar sentencing standards exist in the ACT and other states, although terminology and guidelines may vary.
Courts across Australia consider factors such as remorse, rehabilitation prospects, prior criminal history, and level of cooperation when imposing sentence.

Legal Process
& Options
Being charged with murder is a life-altering event with potentially catastrophic consequences. These cases are legally and emotionally complex, often involving forensic evidence, expert testimony, and complex arguments about intent, mental state, and causation.
If you or someone you know is facing a murder charge, it is critical to obtain experienced criminal defence representation immediately. Early legal advice can help shape the direction of the case and ensure that all defence and procedural safeguards are properly considered.
Pleading
Not Guilty
Our team at Brightstone Defence will develop a strategic and tailored defence to fight your charge. This may include:
- Demonstrating lack of intent or causation
- Raising a valid defence such as automatism or mental illness
- Challenging the reliability of prosecution evidence or identification
We will carefully review all aspects of your case and represent your interests at every stage.
Pleading
Guilty
If you choose to plead guilty, your matter will proceed directly to sentencing. Entering an early guilty plea may:
- Reduce legal costs and penalties
- Show remorse, potentially resulting in a more lenient sentence
Before pleading guilty, it is crucial to speak with one of our experienced criminal defence lawyers to fully understand your legal options and the possible consequences.
- Murder involves intentional or reckless killing
- Manslaughter involves a lack of intent, but death occurs due to:
- Criminal negligence
- Unlawful and dangerous acts
- Excessive self-defence or provocation
It means the person knew their actions were likely to cause death, but continued anyway.
For example, setting fire to an occupied house or hitting someone violently knowing it could be fatal.
Life imprisonment means a person can be kept in prison for the rest of their natural life, though courts may set a non-parole period (minimum time before eligibility for release).
In rare or extreme cases, the court may impose a “life means life” sentence with no parole.
- Yes, if they:
- Encouraged, directed, or helped the killer (accessory or joint criminal enterprise)
- Participated in a crime that led to a foreseeable killing
- Ordered or planned the killing
This applies when someone causes a death while committing a serious crime (e.g., robbery, assault, arson), even if there was no intent to kill.
It’s treated as murder due to the dangerous context.
- Yes, if a person:
- Genuinely believed they needed to defend themselves or another person, and
- The force used was reasonable
If the self-defence was excessive, it may reduce murder to manslaughter.
Families can access:
- NSW Victims Services (or state equivalent)
- Funeral and counselling support
- Victim impact statements during sentencing
- Access to information through Corrective Services
A jury of 12 people decides whether the accused is guilty or not guilty based on the evidence presented in court.
The judge oversees the trial and imposes the sentence if there is a conviction.
- Yes
Facing a murder charge is extremely serious and requires immediate legal representation. An experienced criminal defence lawyer can protect your rights, review evidence, and develop a strong defence strategy tailored to your case.
At Brightstone Defence, our expert criminal lawyers provide strategic guidance through every stage of the legal process. We assess the circumstances, identify possible defences, and work to achieve the best possible outcome. Contact us today for confidential advice and professional representation.
- Murder involves intent to kill or cause serious injury.
- Manslaughter involves:
- No intent, but still unlawful actions or negligence leading to death.
- It is considered less morally blameworthy than murder.
There are two main types under Australian law:
- Voluntary manslaughter – where there is intent, but the offence is downgraded from murder due to mitigating circumstances (e.g. provocation or excessive self-defence).
- Involuntary manslaughter – where the death was caused by:
- An unlawful and dangerous act, or
- Gross negligence (e.g. a duty of care was breached with serious consequences).
- This occurs when a person:
- Commits an illegal act, and
- That act is dangerous, and
- It causes someone’s death (even if death was not intended).
- This applies when someone owes a duty of care (e.g. a parent, carer, or professional), and:
- Fails to take reasonable steps to protect a person, and
- That failure results in death.
- Yes. For example:
- A DV-related assault that unintentionally causes death (e.g. head injury from a shove)
- Failing to seek medical help for a partner after a violent incident
- Extreme neglect or abuse that leads to a partner or child’s death
These cases may be charged as manslaughter instead of murder depending on intent and circumstances.
- Yes, in some cases. For example:
- If a person owed a duty of care and their failure caused death (e.g. neglect, omission)
- If they were involved in an unlawful act that caused someone else to die, even if unintentionally
- Yes
If a person acted to protect themselves or others, and used reasonable force, it may be a full defence to the charge.
However, excessive self-defence may reduce a murder charge to manslaughter.
- Yes
Prosecutors or a jury may decide the evidence does not support intent required for murder, and instead proceed with or return a manslaughter conviction.
This can happen during plea negotiations or trial.
- Murder involves intentional or reckless killing
- Manslaughter involves a lack of intent, but death occurs due to:
- Criminal negligence
- Unlawful and dangerous acts
- Excessive self-defence or provocation
It means the person knew their actions were likely to cause death, but continued anyway.
For example, setting fire to an occupied house or hitting someone violently knowing it could be fatal.
Life imprisonment means a person can be kept in prison for the rest of their natural life, though courts may set a non-parole period (minimum time before eligibility for release).
In rare or extreme cases, the court may impose a “life means life” sentence with no parole.
- Yes, if they:
- Encouraged, directed, or helped the killer (accessory or joint criminal enterprise)
- Participated in a crime that led to a foreseeable killing
- Ordered or planned the killing
This applies when someone causes a death while committing a serious crime (e.g., robbery, assault, arson), even if there was no intent to kill.
It’s treated as murder due to the dangerous context.
- Yes, if a person:
- Genuinely believed they needed to defend themselves or another person, and
- The force used was reasonable
If the self-defence was excessive, it may reduce murder to manslaughter.
Families can access:
- NSW Victims Services (or state equivalent)
- Funeral and counselling support
- Victim impact statements during sentencing
- Access to information through Corrective Services
A jury of 12 people decides whether the accused is guilty or not guilty based on the evidence presented in court.
The judge oversees the trial and imposes the sentence if there is a conviction.
- Yes
Facing a murder charge is extremely serious and requires immediate legal representation. An experienced criminal defence lawyer can protect your rights, review evidence, and develop a strong defence strategy tailored to your case.
At Brightstone Defence, our expert criminal lawyers provide strategic guidance through every stage of the legal process. We assess the circumstances, identify possible defences, and work to achieve the best possible outcome. Contact us today for confidential advice and professional representation.
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