S.D. Codified Laws § 11-7-14
For inefficiency or neglect of duty, or misconduct in office, a commissioner may be removed by the governing body of the municipality or the county as applicable, but a commissioner shall be removed only after a hearing and after he shall have been given a copy of the charges at least ten days prior to the hearing and had an opportunity to be heard in person or by counsel. When charges in writing have been preferred against a commissioner, pending final action thereon, the governing body may temporarily suspend him, but, if it is found that those charges have not been substantiated, he shall immediately be reinstated in his office. In the event of the removal of any commissioner, a record of the proceedings, together with the charges and findings thereon, shall be filed in the office of the clerk.
SDCL 11-7-14