(1) A forensic procedure may be performed on a person under this chapter if—(a) either of the following gives consent (
"forensic procedure consent" ) to the procedure being performed—(i) the person on whom it is proposed to perform the forensic procedure;(ii) someone else authorised under part 2 to give consent for the person if the person is a child under 14 years or a person with impaired capacity; or(b) the procedure is performed under a forensic procedure order; or(c) this chapter otherwise authorises a qualified person to perform the procedure.
(2) A person on whom it is proposed to perform a forensic procedure may in this chapter be referred to as a
"relevant person" .