(1) A senior police officer may order the carrying out of a non-intimate forensic procedure on an untested registrable person if--(a) the registrable person has been requested under section 75W to consent to the carrying out of the forensic procedure, and(b) the registrable person has not consented.
(2) If the senior police officer needs to decide between taking a sample of the registrable person's hair or the carrying out of a self-administered buccal swab, an order for the taking of a sample of hair may not be made unless, following inquiry by the police officer--(a) the registrable person has indicated that he or she prefers the taking of a sample of hair, or(b) the registrable person has failed to indicate that he or she will carry out a self-administered buccal swab.