Adult Social Care Glossary, v 0.6

(7) In this regulation-- 'relevant person' means the service user or, in the following circumstances, a person lawfully acting on their behalf--
(a) on the death of the service user,
(b) where the service user is under 16 and not competent to make a decision in relation to their care or treatment, or
(c) where the service user is 16 or over and lacks capacity (as determined in accordance with sections 2 and 3 of the 2005 Act) in relation to the matter;