SDCL § 33-10-45: Punishment prohibited before trial.

No person, while being held for trial or awaiting a verdict, may be subjected to punishment or penalty other than arrest or confinement upon the charges pending against the person. The arrest or confinement imposed upon such person may not be any more rigorous than the circumstances required to insure the person's presence, but the person may be subjected to minor punishment during that period for infractions of discipline.