House of Lords · 3-2: Lords Scarman, Fraser and Bridge; Lords Templeman and Brandon dissenting
Facts
Mrs Gillick, a mother of daughters under sixteen, challenged a Department of Health and Social Security circular advising doctors that they could prescribe contraception to girls under sixteen without parental consent. She sought a declaration that the circular was unlawful because it encouraged underage sexual intercourse and undermined parental rights.
History
The High Court dismissed the claim. The Court of Appeal allowed the appeal and declared the circular unlawful. The House of Lords allowed the appeal and restored the High Court decision.
Issue
Whether a girl under sixteen can validly consent to contraceptive treatment without parental knowledge or consent, and whether a doctor who provides such treatment commits an offence such as aiding unlawful sexual intercourse.
Held
Appeal allowed. The circular was lawful. A child under sixteen has capacity to consent to medical treatment if they have sufficient understanding and intelligence to comprehend fully what is proposed.
Ratio
- A minor under sixteen can consent to medical treatment if they have sufficient understanding and intelligence to comprehend the nature, purpose and consequences of the treatment; parental rights yield to the child's autonomy when the child reaches this level of competence.
The judgments
Lord Scarman (lead)
Held that parental rights are not absolute but exist for the benefit of the child and diminish as the child matures. A child achieves capacity to consent when they have sufficient understanding and intelligence to understand fully what is proposed. The doctor's duty of confidentiality applies equally to a competent child.
Lord Fraser (concurring)
Agreed that a girl under sixteen could consent if she understood the advice, but emphasised that the doctor must be satisfied that the girl would continue having intercourse with or without contraception, that her physical or mental health would suffer without it, and that it is in her best interests to give advice without parental consent.
Lord Bridge (concurring)
Concurred with Lord Scarman, stressing that the common law recognises a child's capacity to consent once they reach sufficient understanding, and that the circular gave lawful guidance to doctors.
Lord Templeman (dissenting)
Argued that a child under sixteen lacks the legal capacity to consent to contraceptive treatment because Parliament has set the age of consent for sexual intercourse at sixteen, and allowing medical consent below that age undermines the statutory protection.
Lord Brandon (dissenting)
Dissented. He considered that giving contraceptive advice or treatment to a girl under sixteen without her parents' knowledge would involve a doctor in facilitating unlawful sexual intercourse, so that the guidance was unlawful.
Key reasoning
- Parental rights are not sovereign; they exist for the welfare of the child and diminish as the child's maturity increases.
- The test for capacity is whether the child has sufficient understanding and intelligence to comprehend fully the nature, purpose, risks and implications of the proposed treatment.
- A doctor who gives contraceptive advice or treatment to a girl under sixteen in good faith, for the sake of her health, does not commit the offence of aiding and abetting unlawful sexual intercourse, because he lacks the necessary intention to promote the offence.
- The doctor's duty of confidentiality extends to a competent child, and breaching it would undermine the trust necessary for effective medical care.
Obiter
- Lord Fraser's checklist of criteria for doctors providing contraceptive advice to girls under sixteen without parental consent, known as the Fraser guidelines.
Where it fits in the module
In the Criminal Law module, Gillick illustrates how valid consent can negate the actus reus of battery in a medical context and shows that the capacity to consent is not fixed by a statutory age but depends on the individual's understanding. It connects with later cases on consent such as Brown, Wilson and Konzani, and informs the debate on the relationship between the age of consent for sexual activity and the capacity to consent to medical treatment.
Criticisms
- The test of sufficient understanding is vague and difficult for doctors to apply in practice.
- It may undermine parental responsibility and family autonomy.
- There is no lower age limit, potentially allowing very young children to make serious medical decisions.
- It creates a tension with the statutory age of consent for sexual intercourse, which remains sixteen regardless of the child's understanding.
Written with AI (nvidia/nemotron-3-ultra-550b-a55b) on 1 November 2026, reviewed for errors by a second model (claude-sonnet-5.5 (Claude Code reviewer)). Read the case itself at [1986] AC 122, [1986] Crim. L.R. 113. Spotted an error? Tell us.