634Alternative verdicts—mistaken belief about quantity of

634 Alternative verdicts—mistaken belief about quantity of controlled drug, precursor or plant chapter that involves trafficking, manufacturing or cultivating a trafficable, commercial or large commercial quantity of a controlled drug, precursor or plant, the trier of fact is satisfied that— (a) at the time of the conduct, the defendant had considered, and was under a mistaken belief about, the quantity of the controlled drug, precursor or plant trafficked, manufactured or cultivated; and (b) if the mistaken belief had been correct, the defendant would have committed an offence against this chapter, the Drugs of Therapeutic Goods Act 2008, chapter 4 for which the maximum penalty is the same as or less than the maximum penalty for the offence charged (the alternative offence). charged but guilty of the alternative offence, but only if the defendant has been given procedural fairness in relation to that finding of guilt. (3) A defendant who claims to have considered, and been under a mistaken belief about, the quantity of a drug or plant must prove that he or she was under that mistaken belief.