SDCL § 12-1-35: Secretary of state to examine nominating petitions for statewide office for compliance.

The secretary of state shall examine each nominating petition for statewide office upon being received by the Office of Secretary of State. No signature of a person may be counted by the secretary of state unless the person is a registered voter in the county indicated on the signature line and has complied with the laws and rules concerning petitions. No signature of a person may be counted if the information required on the petition form is not complete.