The scope of someone's consent is the range of actions that they permit by giving consent. The Scope of Consent investigates the under-explored question of which normative principle governs the scope of consent. To answer this question, the book's investigation involves taking a stance on what constitutes consent. By appealing to the idea that someone can justify their behaviour by appealing to another person's consent, Dougherty defends the view that
consent consists in behaviour that expresses a consent-giver's will for how a consent-receiver behaves. The ultimate conclusion of the book is that the scope of consent is determined by certain evidence that bears on the appropriate interpretation of the consent.