(1) Subject to subsection (2), if, under section 18LA, a certificate is admitted in evidence in offence proceedings under Part VI, the person charged with the offence may require the person who gave the certificate to be called as a witness for the prosecution and cross - examined as if he or she had given evidence of the matters stated in the certificate.
(2) Subsection (1) does not entitle the person charged to require the person who gave a certificate to be called as a witness for the prosecution unless:
(a) the prosecutor has been given at least 4 days notice of the person's intention to require the person who gave the certificate to be called; or
(b) the Court, by order, allows the person charged to require the person who gave the certificate to be called.