13-3420. Unlawful substances; threshold
amounts


For purposes of determining if the threshold amount is equaled or exceeded in any
single offense or combination of offenses, a percentage of each substance listed by
weight in section 13-3401, or any fraction thereof to its threshold amount shall be
established. The percentages shall be added to determine if the threshold amount is
equaled or exceeded. If the total of the percentages established equals or exceeds one
hundred per cent, the threshold amount is equaled or exceeded. If the threshold amount
is equaled or exceeded because of the application of this subsection, the person shall be
sentenced as if the combination of unlawful substances consisted entirely of the unlawful
substance of the greatest proportionate amount. If there are equal proportionate
amounts, the person shall be sentenced as if the unlawful substances consisted entirely
of the unlawful substance constituting the highest class of offense.