Mo. Rev. Stat. § 540.130
Current with changes from the 2024 Legislative Session
Whenever required by any grand jury, it shall be the duty of the prosecuting or circuit attorney in the county, or in a city not within a county, to attend them for the purpose of examining witnesses in their presence, or giving them advice upon any legal matter.
§ 540.130, RSMo
RSMo 1939 § 3912, A.L. 1989 S.B. 127, et al.