Author: Dee Giannopoulos
Practice area: sex offences
Dee is a Director at Doogue + George and an LIV Accredited Criminal Law Specialist, recognised by Doyle's Guide as a Leading Criminal Defence Lawyer in Victoria (2026), with extensive experience in adult and child sex offence matters. Her depth of experience in this area means clients receive accurate, considered advice.
View full profile →Dee authored this content and last revised it for accuracy on 7 August 2026.
*Please note that the previous charge of sexual penetration of a 16 or 17 year old child in Australiia is now an outdated offence
In Victoria, section 49G of the Crimes Act 1958 is the offence of sexual penetration of a child between 16 or 17 years of age, which is the act of introducing an object, penis, or finger into a child’s mouth, vagina, or anus.
Has someone called you and accused you of sexual penetration of a 16 or 17 year old child? Most children in Australia grow up in a safe environment but not all experience that safety regarding sexual abuse. The general age of consent to sex is 16 years old, but there are some circumstances in which that is not the case.
The age of consent is the minimum age at which a person can legally consent to sexual activity. Many Australian states and territories set the age of consent at 16 years. In South Australia and Tasmania, the age of consent is 17.
Call us today to have your important legal questions answered in confidence.
What is Sexual Penetration of a 16 or 17 Year Old Child?
Sexual penetration of a 16 or 17 year old child in Australia is an offence under section 49G of the Crimes Act 1958 (Vic), committed when an adult intentionally sexually penetrates a child aged 16 or 17 who is in their care, supervision, or authority.
That relationship is the defining element. Consent is not a defence because the criminal law treats the power imbalance as displacing any question of consensual sex. Consent is defined as free agreement and cannot be obtained through coercion or intimidation.
Positions commonly caught include a teacher, sports coach, foster parent, step parent, employer or youth worker. The maximum penalty is 10 years imprisonment.
Police interview
The police investigation stage is often the most important point of a case. Anything you tell the police can harm your defence in the future. The aim of the police interview is to try to get admissions from you to lock you into a plea of guilty. The police interview is not where you explain your side of the story and hope that the matter will go away. You need to receive advice on how to deal with the police.
Elements of Sexual Penetration of a 16 or 17 Year Old Child
- The accused took part in an act of sexual penetration with the complainant
- The accused intended to take part in that act
- The complainant was 16 or 17 years old at the time
- The accused was not married to the complainant
- The complainant was under the accused’s care, supervision or authority
This provision was repealed on 1 July 2017 and can only be charged for conduct occurring before that date. It was replaced by section 49C of the Crimes Act 1958 (Vic) – Sexual penetration of a child aged 16 or 17 under care, supervision or authority.
Why You Should Get Legal Advice Before Speaking to Police
Your interview is recorded and can be played to a jury. You have the right to silence, and exercising it cannot be used against you at trial. Answers given without advice, especially about dates, the child’s age, or how the relationship began, are very difficult to correct later. Only the person charged can give up that right, so speak to a criminal law specialist before attending the station.
Defences
Two obvious defences arise in this charge. Firstly, that you genuinely believed on reasonable grounds that they were 18 or over. Secondly, that the person was not in your care, supervision, or authority. Often there is a factual dispute as to when exactly something happened with these sorts of charges.
Pleading not guilty to a Sexual Penetration charge
If you are accused of sexual penetration of a 16 or 17 year old child, you should call us to discuss a strategy with one of our experienced lawyers. We are criminal defence lawyers who specialise in sex matters and are experienced in running sex matters in court and before juries. We will work hard on your case and make sure that you have the best possible chance of winning your case. There is much work that needs to be done.
This includes pushing the police to get full disclosure of their evidence, using our own investigators, and getting our own witnesses. This case is important to you and that is how we will treat it. We pride ourselves on our preparation of matters for court. It is obvious that being accused of a sexual offence can be stressful. Being accused of sexual penetration of a 16 or 17 year old child or other child sex offence can be devastating. It can negatively impact your reputation, your employment, your ability to parent your children, and your ability to travel. sexual penetration of a 16 or 17 year old child is made worse if the police say that you were in a position of power over the complainant, such as that you were a school teacher or guardian.
Pleading guilty to Sexual Penetration of a Child
If you are pleading guilty, we can advise you on how to prepare your plea to get the best possible outcome. A good plea will rely on the following:
- Gathering mitigating material,
- Getting reports, and
- Taking the time to get to know you so your story can be properly explained to the Judge.
We have achieved great outcomes for people who have pleaded guilty to Sexual Penetration of a 16 or 17 Year Old Child. A finding of guilt for Sexual Penetration of a 16 or 17 Year Old Child will almost always lead to an immediate prison sentence and being placed on the Sex Offender Register for a long period of time.
- Contact an expert in charges of Sexual Penetration of a 16 or 17 Year Old Child on (03) 9670 5111.
- We provide a free first phone conference.
- Download our free booklet to learn more about the Investigation and Court process.
Can the Charge Be Withdrawn?
Withdrawal is a decision for the prosecution, guided by the DPP’s policy. This policy looks at two things: whether there is a reasonable prospect of conviction and whether prosecuting serves the public interest. Written submissions before or at the committal stage, supported by phone records, messages, employment and medical records, and witness statements, can expose gaps in the case. Charges involving disputed dates or an unclear supervisory role are most likely to be discontinued.
What penalties can be imposed for a charge of Sexual Penetration of 16 or 17 Year Old Child?
- Adjournment of the Charges on Undertaking (Good Behaviour Bond)
- Fine
- Community Corrections Order
- Suspended Prison Sentence
- Term of Imprisonment
You may also visit this page to view sentencing decisions by Victorian County Courts for sexual offences against children.
Legislation
The legislation for this offence can be found in section 49G of the Crimes Act 1958 (Vic). A serious charge such as this must be heard before a judge in the County Court. If it is defended, then it will be heard by a jury of 12 who will decide whether you are guilty. The 2016 amendments renamed this offence to ‘Sexual Activity in the Presence of a Child Aged 16 or 17′. It applies to anyone who engages in any sexual activity (as opposed to just sexual penetration) in the presence of a child aged 16 or 17 in the person’s care, supervision, or authority.
Sentencing
In Victoria, penalties for certain sex offences involving children have become more punitive. A plea of guilty to sexual penetration of a child 16 or 17 years of age committed on or after 20 March 2017 is a Class 1 offence and will result in an automatic prison sentence. The length of the term of imprisonment can be reduced by strategically preparing for your plea by obtaining an expert report which provides the sentencing Judge with a detailed description of your mental state and committing to treatment well in advance of your plea.
For historical cases of sexual penetration of a child of 16 or 17 years of age where a substantial time has passed since the offending, a properly conducted plea in mitigation may result in the sentencing judge placing you on a community correction order or imposing a suspended sentence. For example, in DPP v Cormack [2017] VCC 858, the accused pleaded guilty to one charge of penetration of a child under 16 years of age. The offending occurred in 1985 when the complainant was 14 years old and the accused was 23 years old. The accused remained offence free. He received a suspended sentence.
Case Studies
- SORA Exemption Application – Child Sex Offence
- Sexual Assault – Not Guilty
- Possession of Child Pornography and Access Child Porn Using Carriage Service
- Community Corrections Order for Sexual Assault
- Sexual Assault of a Police Officer – Fine, Not Placed on Register
- Community Corrections Order for Child Porn Offences
Sex Offences
- Abduction of a Child Under the Age of 16 for a Sexual Purpose
- Abduction or Detention for a Sexual Purpose
- Administration of Drugs for a Sexual Purpose
- Assault with Intent to Commit a Sexual Offence
- Bestiality
- Compelling Sexual Penetration
- Distribution of Intimate Image
- Furnish False or Misleading Information (Sex Offender Registry)
- Incest
- Indecent Act In the Presence of a Child Under the Age of 16
- Indecent Assault
- Intentionally Visually Capture Another Person’s Genital or Anal Region
- Involving a Child in the Production of Child Abuse Material
- Loitering Near Schools By a Sexual Offender
- Offence of Failing to Comply With Reporting Obligations (Sex Offender Registry)
- Persistent Sexual Abuse of a Child Under 16
- Possession of Child Abuse Material
- Procuring a Sexual Act By Fraud
- Procuring a Sexual Act By Threat
- Production of Child Pornography
- Rape
- Sexual Activity Directed at Another Person
- Sexual Assault By Compelling Sexual Touching
- Sexual Assault
- Sexual Offences – Persons With a Cognitive Impairment By Providers of Special Programs
- Sexual Offences Against Persons With a Cognitive Impairment By Doctors etc.
- Sexual Penetration of 16 or 17 Year Old Child
- Sexual Penetration of a Child Under 16
- Sexual Servitude
- Threat to Commit Sexual Offence
- Threat to Distribute Intimate Image














