No person may deliver or possess with intent to deliver or knowingly manufacture any noncontrolled substance which the person represents to be a substance controlled under the provisions of this chapter. Any person who violates this section is guilty of a Class 6 felony. Source: SL 1981, ch 183 ; SL 1982, ch 181 ; SL 1982, ch 182 ; SL 1998, ch 139 , § 5.