The state's attorney and the state's attorney's deputies and special agents are entitled to receive from the county the necessary traveling and hotel expenses while traveling for the purpose of making investigations and attending to the duties of office either within or without the state. The county treasurer shall pay the expenses upon the presentation of itemized vouchers approved by the state's attorney. If the state's attorney, the deputy, or special agent used a personal motor vehicle, the person is entitled to receive not more than the state rate for each mile necessarily traveled.
SDCL 7-16-16