Mo. Const. art. IV, § 37

The health and general welfare of the people are matters of primary public concern; and to secure them there shall be established a department of social services in charge of a director appointed by the governor, by and with the advice and consent of the senate, charged with promoting improved health and other social services to the citizens of the state as provided by law, and the general assembly may grant power with respect thereto to counties, cities or other political subdivisions of the state. [Effective - 07 Sep 1972 , see footnote]