Member Directory

Pete Heidepriem

Heidepriem, Purtell, Siegel & Hinrichs LLP
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Pete Heidepriem
Heidepriem, Purtell, Siegel & Hinrichs LLP
Sioux Falls,

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. He has appealed fraud and probate claims to the Supreme Court of South Dakota, and before the U.S. Supreme Court, he filed an amicus brief regarding tribal sovereignty on behalf of American Indian tribes.


Chief Judge Jeffrey L. Viken of the U.S. District Court for the District of South Dakota

Magistrate Judge Patricia A. Sullivan of the U.S. District Court for the District of Rhode Island

Published Works

Tribal Remedies, Exhaustion, and State Courts, 44 Am. Indian L. Rev. 241 (2020)

Chosen as one of the “Selected Law Review Articles” in the American Indian Law Deskbook by the Conference of Western Attorneys General

Fresh Fears of Deportation for Cubans in the U.S., 29 Geo. Immigr. L.J. 305 (2015)

The Tohono O’odham Nation and the United States-Mexico Border, 4 Am. Indian L.J. 107 (2015)


Georgetown University Law Center, Washington, District of Columbia

J.D. - 2016

Honors: Dean's List, Moot court, Graduation commencement speaker, Georgetown Immigration Law Journal

Bucerius Law School, Hamburg

International and comparative business law - 2015

Arizona State University, Tempe, Arizona

B.A. - 2013

Honors: magna cum laude

Honors: Phi Beta Kappa

Major: Philosophy and Political Science

London School of Economics, London

Economics and political theory - 2011

Bar Admissions

South Dakota, 2016

U.S. District Court District of South Dakota, 2016

Lower Brule Sioux Tribal Court, 2020

U.S. Supreme Court, 2020

Past Positions

Environment and Natural Resources Division, U.S. Department of Justice, Appellate section intern

Chambers of Judge Tanya S. Chutkan of the U.S. District Court for the District of Columbia, Judicial intern

South Dakota U.S. Attorney’s Office, Legal intern

Current Employment Position


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