Pete Heidepriem

After joining HPS Law Firm, Pete began practicing in South Dakota's state and federal courts, as well as the tribal court of the Lower Brule Sioux Tribe. His personal injury work ranges from farm and ranch injuries to car crashes. Pete also represents people vindicating their civil rights in claims based on racial discrimination or other constitutional violations.

His trial work includes serving as a tribal prosecutor for the Lower Brule Sioux Tribe, where he was lead counsel in a court trial and managed complex prosecutions involving violent crimes and drug offenses. He also has served as counsel to a tribal judge of the Sisseton-Wahpeton Oyate.

Pete's appellate experience covers state and federal courts. In front of the U.S. Court of Appeals for the Eighth Circuit, he argued on behalf of a driver in a traffic stop who claimed his constitutional rights were violated—the result was a unanimous decision in his client’s favor. He has appealed fraud and probate claims to the Supreme Court of South Dakota, achieving a unanimous decision for his client. Before the U.S. Supreme Court, he filed an amicus brief regarding tribal sovereignty on behalf of American Indian tribes, and the Court ruled unanimously in favor of the party supported in the brief.

In addition to private practice, Pete maintains a focus on academic work. He serves as an adjunct professor of law at the University of South Dakota Knudson School of Law, teaching a seminar on appellate advocacy and federal Indian law. During fall 2021, he was a Joachim Herz Fellow and visiting scholar at Bucerius Law School in Germany, where he conducted research on the intersection of international investment law and the rights of Indigenous peoples. Bucerius featured Pete in an article about his fellowship, and you can access it here.