DPP Faizal did not argue for the death penalty to be imposed, presumably because the Public Prosecutor would have declined to issue the certificate of substantive assistance if he were pressing for the death penalty. I pause here to observe that the Public Prosecutor may be duty bound to certify that a person convicted had rendered substantive assistance if the facts so justify. That certificate may not be a matter for the Public Prosecutor to grant or withhold at will. Although s 33B(4) of the Act provides that the determination of whether or not a person has substantively assisted the CNB in disrupting drug trafficking activities is within the sole discretion of the Public Prosecutor, the Public Prosecutor’s determination can be challenged on the basis of unconstitutionality, or if it was made in bad faith or with malice: Muhammad Ridzuan at [34] – [35]. The Court of Appeal in Muhammad Ridzuan was further of the view (at [71]) that “bad faith” within the meaning of s 33B(4) should be understood to refer to the “knowing use of a discretionary power for extraneous purposes (ie, for purposes other than those for which the decision maker was granted the power)”. The Public Prosecutor would have exercised his discretionary power for an “extraneous purpose” if, for instance, he is satisfied that a convicted person had substantively assisted the CNB in disrupting drug trafficking activities, but deliberately withheld the issuance of the certificate because he feels that the person nonetheless deserves to be sentenced to death and so wants to prevent the court from exercising its discretion under s 33B of the Act to impose a sentence of life imprisonment in lieu of the death penalty. In such a situation, if the Public Prosecutor is of the view that the death penalty is the more appropriate punishment for the person convicted, the proper course will be for him to issue the certificate, but to make the relevant submissions to convince the court to exercise its discretion under s 33B to still impose the death penalty. This issue, does not, however, arise in the present case. I make these observations so as to present a clearer context of the change in the law.