(1) Subject to subsections (3) and (4), despite the provisions of any other law, a certificate of an analyst purporting to be signed by him or her stating that he or she has analysed or examined a substance and stating the result of such analysis or examination is admissible in evidence or any prosecution under this Act of the matters stated therein if it is proved by other evidence that the seals or other fastenings of the container of the substance or thing analysed and in respect of which the certificate was given were intact at the time the container was delivered to him or her.
(2) Evidence shall be required by the court as to the signature or qualifications of the person purporting to have signed the certificate.
(3) A certificate shall not be received in evidence unless the party intending to produce it has given to the other parties 7 days notice of such intention and has furnished with such notice a copy of the certificate.
(4) In any prosecution under this Act either of the parties may require the attendance or an analyst to give evidence and in such case the costs of his or her attendance shall, unless the judge or magistrate orders otherwise, be payable by the party so requiring.