For Search & Rescue Operators providing pre-hospital care and rescue within an aquatic environment, difficulties arise not only from the logistics of performing these interventions, but also obtaining consent from casualties. A great proportion of UKSAR operatives are volunteers, nevertheless, the law expects them to provide the same standard of care as a professional. Consequently, this high standard, combined with the proliferation of operations concerning mental health and the supposed "litigation culture", leaves these volunteers in a uniquely difficult position. This paper aims to provide a guide, for those operating in and around water, on law regarding consent, capacity and necessity in England & Wales.