In all precincts the board of county commissioners shall adjust the size of any precinct at which there was unreasonable waiting time imposed upon the voters at the last preceding general election. Under ordinary circumstances, more than thirty minutes waiting time is deemed unreasonable waiting time except at the time when the polls close.

Source: SDC 1939, § 16.0801 (1); SL 1959, ch 94; SL 1968, ch 78; SL 1974, ch 118, § 62; SL 1976, ch 105, § 31; SL 1996, ch 94, § 3.