Mo. Rev. Stat. § 161.502
161.502 Definitions.
161.502. Definitions. — As used in sections 161.500 to 161.508 , the following terms mean:
(1) "Department" , the department of elementary and secondary education;
(2) "Drugs" includes, but is not limited to:
(a) All controlled substances defined in chapter 195 ; and
(b) Alcoholic beverages.
(L. 1990 S.B. 740 § 32)