(1) Despite any provision of this Part, if a parent or guardian of a child is a suspect in relation to the offence under investigation in relation to which a forensic procedure is proposed to be carried out on the child, a reference to the parent or guardian of the child is to be read as a reference to--(a) a parent or guardian of the child who is not a suspect in relation to the offence under investigation, or(b) if such a parent or guardian is not available--the closest available relative of the child who is not a suspect in relation to the offence under investigation.
(2) In this Part--
"closest available relative" of a child means one of the following persons who is at least 18 years of age and is available at the relevant time--(a) a brother or sister of the child,(b) a grandparent of the child,(c) an uncle or aunt of the child.