Consenting Kids

Queensland / Australian context

Big picture

Age alone does not determine capacity.

Gillick competence allows many adolescents to consent independently.

Confidentiality is important but not absolute.

Safeguarding must always be considered.

High-risk or disputed treatment may require court/legal involvement.

Careful documentation is one of the strongest protections for both patient and clinician.

Consent issues in young people involve different legal concepts:

Area	Key rule
Sexual consent	In Queensland, general age of consent for sexual activity is 16 years.
Medical consent	18 years = adult legal capacity, but under-18s may consent if mature enough.
Medical consent age 16–17	Doctors generally assume capacity to consent, unless there are concerns.
Medical consent under 16	Young person must demonstrate capacity / Gillick competence.
Financial consent	Separate issue: – consider Medicare – billing – costs – capacity to understand financial implications.

2. Medical consent: Queensland

Adults

A person aged 18 or older can consent to or refuse medical treatment if they:
- understand the information given
- can make reasonable choices based on that information.

Children and young people under 18

Most of the time, a parent or guardian can agree to treatment for a child or young person under 18.
However, a young person under 18 can make their own medical treatment decisions if they are capable of understanding why the treatment is important.
Queensland Health states that if a young person under 18 does not have capacity and is not Gillick competent, a parent or legal guardian may provide consent.

Practical age thresholds

Age	Practical approach
18+	Presumed adult capacity unless impaired.
16–17	Generally assume capacity to consent, unless there are concerns.
<16	Must more clearly assess and document capacity / Gillick competence.

Legal Aid Queensland states that if a person is 16 or over, doctors will generally assume they have capacity to consent to medical treatment; if under 16, they must prove capacity.

Consent in children and adolescents is a common but complex issue in general practice, emergency medicine, paediatrics, sexual health, and mental health care. Australian law recognises that some young people under 18 years may have sufficient maturity and understanding to make their own healthcare decisions. This principle is known as Gillick competence or the mature minor doctrine.

This guide summarises the legal principles, practical clinical application, safeguarding considerations, confidentiality issues, and documentation requirements relevant to Australian clinicians, particularly in Queensland.

1. Core Legal Principles

Age of Majority

In Australia:

18 years and older → presumed to have full legal capacity to consent to or refuse medical treatment.
Adults are presumed competent unless impaired by:
- delirium
- intoxication
- intellectual disability
- severe mental illness
- cognitive impairment

2. Consent in Young People Under 18

Children and adolescents under 18 are not automatically incapable of consenting.

Australian common law recognises that a young person may independently consent if they demonstrate sufficient:

maturity
intelligence
understanding
reasoning ability

This is called:

Gillick competence
Mature minor doctrine

Importantly:

capacity is decision-specific
capacity is risk-specific
capacity is context-specific

A teenager may be competent to consent to:

antibiotics
contraception
STI testing

but not competent for:

complex surgery
irreversible treatment
refusal of life-saving treatment

3. Gillick Competence

Definition

Gillick competence comes from the UK legal case:

Gillick v West Norfolk and Wisbech Area Health Authority

The case established that parental authority decreases as a child develops sufficient maturity and understanding.

A young person is Gillick competent if they can:

understand the condition
understand proposed treatment
understand risks and benefits
understand alternatives
understand consequences of refusal
weigh information rationally
communicate a clear decision

4. Practical Age Guidance (QLD)

There is no strict legal age for medical consent in Queensland. However, practical clinical thresholds are commonly used.

Age	Practical Clinical Approach
<12 years	Rarely Gillick competent except for very simple low-risk care
12–13 years	May consent to straightforward low-risk treatment
14–15 years	Often competent for many routine decisions
16–17 years	Usually presumed capable unless concerns exist
≥18 years	Full adult legal capacity

5. Queensland Law

Queensland does not set a fixed statutory age for medical consent.

Instead:

clinicians apply Gillick competence individually
assessment must relate to the specific decision
careful documentation is essential

6. Other Australian State Laws

New South Wales

Under the:

Minors (Property and Contracts) Act 1970 (NSW)

a minor aged 14 years or older who consents to treatment receives additional legal protection for clinicians.

South Australia

Under the:

Consent to Medical Treatment and Palliative Care Act 1995 (SA)

young people aged 16 years and older may consent “as though an adult.”

7. Fraser Guidelines

The Fraser Guidelines are a specific application of Gillick competence related to contraception and sexual health in under-16s.

A doctor may provide contraception without parental involvement if:

The young person understands the advice
The clinician cannot persuade them to involve parents
Sexual activity is likely regardless
Health may suffer without treatment
Treatment is in the young person’s best interests

Concept	Applies To	Focus
Gillick competence	All healthcare decisions	Capacity to consent
Fraser guidelines	Contraception/sexual health	Confidential contraceptive care

Fraser guidelines are essentially:

a sexual-health-specific application of Gillick competence

Mature Minor Doctrine

Definition: The mature minor doctrine recognises that some adolescents have sufficient maturity and intelligence to make healthcare decisions independently.

In Australia:

“mature minor” and “Gillick competent” are often used interchangeably in clinical practice.

8. Sexual Consent Law in Queensland

The legal age of consent differs by state and territory.

Jurisdiction	Legal Age of Sexual Consent
ACT	16
NSW	16
NT	16
Queensland	16
Victoria	16
WA	16
South Australia	17
Tasmania	17

Queensland Sexual Consent Law

In Queensland, the general legal age of consent for sexual activity is 16 years.

This applies to:

Vaginal sex
Anal sex
Oral sex
Penetration with objects or body parts
Sexual touching of breasts, genitals or buttocks

For a person under 16, it is unlawful for another person to:

Have sex with them
Touch them sexually
Expose genitals
Ask them to perform sexual acts
Take inappropriate sexual images

This applies even if the younger person says they agreed

Even if a young person is 16 or older, valid consent must be:

Freely and voluntarily given
Informed
Ongoing
Capable of being withdrawn at any time

Consent may be invalid if affected by:

Threats
Fear
Coercion
Grooming
Emotional pressure
Intoxication
Unconsciousness
Cognitive impairment
Exploitation
Significant developmental disparity
Authority or power imbalance

9. New Queensland Authority Laws (2025)

From September 2025, Queensland law prohibits sexual activity between adults and 16–17-year-olds where the adult is in a position of:

care
supervision
authority

even if the young person says they consented.

Examples include:

Teacher–student
Coach–athlete
Employer–employee
Faith leader–young person
Residential care worker–resident
Health practitioner–patient
Carer–dependent young person

10. Peer or “Close-in-Age” Sexual Activity

Some Australian states have close-in-age provisions to avoid criminalising genuinely consensual peer relationships between adolescents, but this varies significantly by jurisdiction.

Queensland

Queensland does not have a simple statutory “Romeo and Juliet” exemption that automatically legalises sexual activity between minors who are close in age.

However, disclosure of consensual peer sexual activity between adolescents does not automatically require:

Mandatory reporting
Police notification
Criminal investigation

The clinical focus should be on:

Safeguarding risk
Developmental context
Coercion
Exploitation
Significant harm
Power imbalance
Protective factors

Peer Sexual Activity — Practical Clinical Approach

When assessing sexual activity between adolescents, consider whether it was:

Mutual
Genuinely consensual
Developmentally appropriate
Free from coercion, threats or fear
Free from grooming or exploitation
Free from intoxication or impaired capacity
Free from significant authority imbalance

Also assess:

Home safety
Psychosocial context
Emotional wellbeing
Relationship dynamics
Developmental maturity
Cultural considerations
Parental protective capacity

Practical Examples

Scenario	Clinical Meaning
14–15-year-old in genuinely mutual peer relationship	May not require mandatory report if no safeguarding concerns
14-year-old with 30-year-old partner	Strong concern for exploitation; likely needs child protection consultation/reporting
Young person with intellectual disability	Capacity and vulnerability require careful assessment
Relationship with unequal cognitive/developmental power	Heightened concern for exploitation

11. Mandatory Reporting in Queensland

Under the Child Protection Act 1999 (Qld), s 13E, doctors and registered nurses are mandatory reporters.

A report to Child Safety is required where there is a reasonable suspicion that a child:

Has suffered
Is suffering
Or is at unacceptable risk of suffering

significant harm caused by:

Physical abuse, or
Sexual abuse

and may not have a parent able and willing to protect them.

Mandatory Reporting Is Not Triggered by Sexual Activity Alone

A mandatory report is not automatically required simply because:

A young person is sexually active, or
Two adolescents close in age engage in consensual sexual activity

The reporting threshold relates to:

Suspected significant harm
Sexual abuse or exploitation
Lack of parental protection

If the relationship appears:

Genuinely mutual
Developmentally similar
Non-coercive
Non-exploitative
Without broader safeguarding concerns

then mandatory reporting may not be required solely on that basis, but careful documentation and follow-up are important.

Separate Queensland Criminal Reporting Obligation

Queensland also has separate criminal legislation requiring reporting of certain sexual offences against children.

Under the Criminal Code Act 1899 (Qld):

Adults must report certain sexual offences committed by another adult against a child unless there is a reasonable excuse.
For this legislation, a “child” includes:
- a person under 16 years, or
- a person under 18 years with an impairment of the mind

12. Safeguarding Assessment in General Practice

Whenever adolescents present for:

contraception
STI testing
pregnancy concerns
sexual assault concerns
mental health concerns

a safeguarding assessment should be considered.

Important Safeguarding Questions

Consider asking privately:

Are you sexually active?
How old is your partner?
Is the relationship consensual?
Do you feel safe?
Has anyone pressured or threatened you?
Is your partner in a position of authority?
Were drugs or alcohol involved?
Has anyone shared sexual images of you?
Any concern about pregnancy or STIs?

Red Flags

Important safeguarding red flags include:

patient under 16 and sexually active
large age gap
partner in authority position
coercion or fear
grooming concerns
recurrent emergency contraception requests
unexplained genital injury
controlling partner
family member involvement
intoxication/impaired capacity

13. Confidentiality in Minors

A Gillick competent adolescent is generally entitled to confidential healthcare.

This is particularly important for:

contraception
STI care
pregnancy advice
mental health
substance use
sexual assault disclosure

Confidentiality promotes:

trust
disclosure
healthcare access
harm minimisation

Limits of Confidentiality

Confidentiality is not absolute.

Clinicians may need to breach confidentiality if there is:

serious risk of harm
abuse
neglect
Coercion
sexual exploitation
mandatory reporting requirement
immediate safety concern
Court or legal requirement

Queensland Mandatory Reporting

Queensland clinicians must consider reporting obligations where there is suspected:

child sexual abuse
significant harm
neglect
exploitation
need for child protection intervention

14. Important Court Cases

Gillick v West Norfolk and Wisbech Area Health Authority 1986

Established mature minor principles. Mature minors may consent if sufficiently mature and informed

Secretary, Department of Health and Community Services v JWB and SMB (Marion’s Case 1992)

Confirmed some procedures require court authorisation, including non-therapeutic sterilisation.

Re Kelvin 2017

Court authorisation not required for Stage 2 gender-affirming hormones where:

child is Gillick competent
parents agree
treating team agrees

Re Imogen 2020

Court involvement required if there is dispute about:

diagnosis
capacity
treatment

17. Overide or When Gillick Competence Is NOT Enough

Court or senior legal involvement may be required for:

sterilisation
organ donation
major surgery
refusal of life-saving treatment
eating disorder refusal of treatment
complex psychiatric treatment
highly controversial treatment
irreversible treatment

Refusal of Life-Saving Treatment

A competent minor’s refusal can still be overridden by courts under the court’s:

parens patriae jurisdiction

if refusal places the child at serious risk of death or major harm.

Example: X v Sydney Children’s Hospital (A 17-year-old minor required a blood transfusion but refused it on the basis of religious beliefs. His parents, who shared the same religious views, supported his refusal.The Court’s Ruling: Medical staff approached the court, which utilized its parens patriae jurisdiction to authorize the life-saving blood transfusion. The court determined that preserving the life and well-being of the minor outweighed both the parents’ objections and the youth’s own autonomy.)

Mental Health and Statutory Overrides

Gillick competence can be overridden by legislation.