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Major indictable offence
District Court of South Australia
Maximum penalty of 15 years imprisonment

Any act which an ordinary decent person would find shocking, disgusting, or revolting however it needs to have a sexual overtone or nexus. No contact is essential and it has been held that it is a matter for the jury as a question of fact as to what should constituted indecency.

Offence It is an offence under Section 58 of the Criminal Law Consolidation Act 1935 (SA) to commit an act of gross indecency with or in the presence of any person under the age of sixteen years. The offence also covers inciting or procuring another person to engage in an act of gross indecency. A person will be guilty of an offence regardless of the act being committed in private or in public.
Maximum Penalty The maximum penalty for acts of gross indecency is 15 years’ imprisonment.
Typical Sentence Sentences vary and whether minors are involved. Terms of imprisonment are ordinarily imposed, and are unable to be suspended or served on Home Detention.
Which Court? Cases are usually heard in the District Court of South Australia given the seriousness of the offence.
Process Timeline Police Complaint → Investigation → Arrest or Summons → Police Interview → Bail Consideration → Hearing in Magistrates Court → Possible committal to District Court → Sentencing if found guilty (Average: 6-12 months)
Possible Defences It may be a defence to the charge if you:

- Have a mental impairment; or
- Have an identification dispute

Consent is not a defence under this section of the Act.

Possible legal outcomes if charged with an act of gross indecency.

Commonly asked questions about acts of gross indecency charges.

What to do if you’re arrested or charged with an act of gross indecency.

Below are examples of how acts of gross indecency may be charged and sentenced in South Australia. These examples are not indicative of a specific outcome and are for informational purposes only.

Low-Level Offence

Mid-Level Offence

Aggravated Offence

Low-Level Offence

Scenario:
A person commits a single act of gross indecency involving a child under 16.

What to expect:
Even for a first offence, the court regards this conduct as serious. A custodial sentence is the most common outcome, though the length will depend on the circumstances and the absence of prior convictions.

Mid-Level Offence

Scenario:
A person repeatedly engages in acts of gross indecency involving a child under 16, showing a pattern of offending.

What to expect:
Courts treat persistent or repeat offending as especially serious. A substantial term of imprisonment is likely, reflecting the ongoing harm and the need for deterrence.

Aggravated Offence

Scenario:
A person commits multiple acts of gross indecency with a child under 16 in circumstances involving coercion or threats, while also being in a position of trust or authority.

What to expect:
Likely to result in imprisonment of up to 15 years, with aggravating factors such as repeated offending, prior convictions, coercion, and abuse of trust or authority significantly increasing the severity of the sentence.

Persistent Exploitation of a Child

Persistent Exploitation of a Child

Reference: 1500392
Indecent Assault

Indecent Assault

Reference: 1300633
Breach of ANCOR

Breach of ANCOR

Reference: 1700169
Rape, Indecent Assault and Assault

Rape, Indecent Assault and Assault

Reference: 1700014
Indecent Assault

Indecent Assault

Reference: 1500006

If you need more information about sexual offences in South Australia, these FAQs answer the most common questions.

What is the maximum penalty for acts of gross indecency in South Australia?

The maximum penalty under Section 58 of the Criminal Law Consolidation Act 1935 (SA) is 15 years’ imprisonment. Cases involving aggravating factors such as repeated offending, coercion, or abuse of a position of trust or authority are treated as the most serious and attract lengthy custodial sentences.

Is consent a defence to a gross indecency charge if the person is under 16?

No. Consent is not a defence where the complainant is under the age of 16 under this section of the Act.

What factors increase the severity of sentencing for gross indecency?

Sentencing is harsher where there are aggravating factors such as repeat offending, prior convictions, coercion or threats, or where the offender was in a position of trust or authority. These factors can significantly increase the length of imprisonment.

Do you need a lawyer if charged with acts of gross indecency?

Yes. These are serious sexual offences with heavy penalties, and imprisonment is common. An experienced criminal defence lawyer can advise you on possible defences, negotiate with prosecutors and present your case to get the best possible outcome.

Does the prosecution need to prove the child saw the indecent act?

No. Courts hold that it’s enough the act occurred in the presence of a person under 16, even if that person wasn’t aware of it.

Can you be charged with gross indecency if you are under 16 yourself?

The law does not provide an automatic exemption simply because the accused is also under 16. A young person can be charged with acts of gross indecency involving another child. However, when the accused is underage, the courts take into account their age, maturity, and circumstances when deciding whether to prosecute and how to sentence.

In practice, many cases involving children close in age are dealt with differently to serious adult offending. Prosecutors often exercise discretion in these situations, and if charges are laid, penalties are usually far less severe than for an adult. Still, the offence remains serious and legal advice is essential if a young person is accused.

Are there time limits for charging acts of gross indecency?

Major indictable offences like gross indecency don’t carry strict time limitations the way summary offences do.

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