In all elections provided for in this Part, the board of elections shall file copies of the returns with the county boards of commissioners, sanitary district board and clerk of superior court in which the district is located. (1927, c. 100, s. 23; 1957, c. 1357, s. 1; 1981, c. 186, s. 4; 1983, c. 891, s. 2.)