R v Wilson

Facts

The appellant and his wife engaged in consensual sexual activity. At her request, he used a heated knife to brand his initials on her buttocks. The injury required medical treatment. He was charged with assault occasioning actual bodily harm under section 47 of the Offences Against the Person Act 1861. The trial judge ruled that consent was not a defence, following Brown.

History

The trial judge ruled that consent was no defence, following Brown. The appellant pleaded guilty and appealed to the Court of Appeal.

Issue

Whether consent is a defence to assault occasioning actual bodily harm where the injury is inflicted during private, consensual sexual activity between adults that is not sadomasochistic in nature.

Held

Appeal allowed; conviction quashed. Consent operates as a defence in these circumstances.

Ratio

• Consent is a defence to a charge of assault occasioning actual bodily harm where the harm results from a private, consensual sexual activity between adults that does not involve the infliction of pain for sexual gratification and is analogous to tattooing or body piercing.

The judgments

Key reasoning

• Brown established that consent is not a defence to actual bodily harm in the context of sadomasochistic activities based on public policy.
• Brown recognised exceptions for surgery, ritual circumcision, tattooing, ear-piercing, and dangerous sports where consent is a defence.
• The branding in this case was not for sexual gratification through pain but was a form of personal adornment requested by the wife.
• The activity was private, consensual, and between married adults, placing it within the line of exceptions recognised in Brown.

Obiter

• The court suggested that the critical distinction turns on whether the activity is sadomasochistic, meaning the infliction of pain for sexual gratification, rather than on the mere fact that it occurs during sexual activity.

Where it fits in the module

This case is central to the debate on consent as a defence to non-fatal offences. It contrasts with Brown (decided 1993, reported 1994), which rejected consent for sadomasochistic harm, and it is later developed by Emmett (1999) on sexual asphyxiation and burning, Richardson and Irwin (1999) on horseplay, Barnes (2004) on sport, and Konzani (2005) on disease transmission. It illustrates the judicial struggle to draw principled lines between acceptable and unacceptable consensual harm in the context of section 47.

Criticisms

• The distinction between sadomasochistic and non-sadomasochistic consensual harm is arbitrary and difficult to apply in practice.
• The decision relies on a narrow reading of Brown that may not reflect the House of Lords' broader public policy rationale.
• It creates uncertainty about what constitutes sexual gratification through pain versus adornment or ritual.
• The private or marital context may be an morally questionable basis for distinguishing criminal liability.