Prosecuting Attorneys. There shall be elected in each judicial circuit by the voters thereof a prosecuting attorney, who shall have been admitted to the practice of law in this State before his election, who shall hold his office for four years, and whose term of office shall begin on the first day of January next succeeding his election. The election of prosecuting attorneys under this section shall be held at the time of holding the general election in the year 1974 and each four years thereafter. (History: As Amended November 3, 1970).