Mo. Rev. Stat. § 351.240
Current with changes from the 2023 Legislative Session
Any inspector, before he shall enter on the duties of his office, shall take and subscribe the following oath before any officer authorized by law to administer oaths: "I do solemnly swear, that I will execute the duties of an inspector of the election now to be held with strict impartiality, and according to the best of my ability.".
§ 351.240, RSMo
RSMo 1939 § 5002, A.L. 1943 p. 410 § 30