Brett A. Chapman

Brett A. Chapman is a Tulsa, Oklahoma, attorney with more than 15 years of experience in criminal defense and civil rights litigation. He represents clients in matters involving DUI, driving offenses, criminal charges, criminal appeals, and civil rights violations. His work is grounded in fairness, careful preparation, and a commitment to protecting individual rights. His background on both sides of legal disputes helps him evaluate cases from multiple perspectives.

Brett earned a B.S. from the University of Oklahoma in 2007. He later received his J.D. from the University of Tulsa in 2010. His undergraduate and legal education provided a foundation in research, legal analysis, advocacy, and problem-solving. This training supports his ability to examine evidence, identify important legal issues, and develop practical strategies for clients facing criminal charges or civil rights concerns.

Brett began his legal career as an Assistant District Attorney in Oklahoma. In that role, he prosecuted complex cases involving homicides, violence against women, and crimes against children. He later moved into civil practice, where he represented railroad companies, before concentrating on criminal defense and civil rights litigation. His appellate experience includes State v. Alba and Weeks v. State, two cases that addressed significant questions involving police authority and restrictions intended to protect children.

Brett A. Chapman has also advocated for Native American civil rights, sovereignty, cultural accuracy, and respectful public representation. His efforts have included challenging Native American mascots and supporting greater recognition of historical Native American figures, including Chief Standing Bear. He received the Mark Keeley Award from Help in Crisis as the Most Outstanding Male Domestic Violence Advocate in Oklahoma. His work reflects a continuing commitment to justice, civil liberties, and principled representation.

Law Office Affiliations

• Partner, Brett A. Chapman Attorney at Law
• Member, Oklahoma Bar Association
• Commissioner, IUCN World Commission on Environmental Law
• Vice Chairman, Tax Commission for the Ponca Tribe of Indians of Oklahoma
• Director of Outreach, First Nations of America at the International Commission for Human Rights and Religious Freedom

Licensed State

• Oklahoma

Education

• University of Tulsa College of Law
  Juris Doctor (JD)
• University of Oklahoma
  Bachelor of Science

Awards & Badges