S.D. Codified Laws § 15-16-44
An out-of-country foreign judgment need not be recognized and entitled to full faith and credit in the State of South Dakota, unless there has been opportunity for a full and fair trial abroad before a court of competent jurisdiction, conducting the trial upon regular proceedings, after due citation or voluntary appearance of the defendant, and under a system of jurisprudence likely to secure an impartial administration of justice between the citizens of its own country and those of other countries, and there is nothing to show either prejudice in the court or in the system of laws under which it was sitting, or fraud in procuring the judgment, or any other special reason why the comity of the State of South Dakota should not allow it full effect.
SDCL 15-16-44