McGirt v. Oklahoma
In brief
The Supreme Court said the historic Creek reservation still counts as Indian country under the Indian Major Crimes Act and overturned the Oklahoma court’s ruling.
- Where it stands
- Decided
Decided 5-4 · July 9, 2020 · Opinion by Justice Gorsuch
- What it’s about
- Jimcy McGirt, a member of the Muscogee (Creek) Nation, challenged Oklahoma’s authority to prosecute him for crimes committed within the Nation’s historic boundaries.
- Who it affects
- For certain major crimes involving Native Americans in the historic Creek reservation, federal authorities—not Oklahoma courts—have exclusive power to prosecute.
Summary: written with AI from the case record.
What it's about
The Supreme Court overturned the Oklahoma Court of Criminal Appeals’ judgment and held that land reserved for the Creek Nation since the 19th century remains “Indian country,” meaning federal Indian-law rules apply there.
The case tested whether 19th-century treaty language still kept the Creek Nation’s reservation legally in place for criminal cases.
Question presented
WHETHER OKLAHOMA COURTS CAN CONTINUE TO UNLAWFULLY EXERCISE, UNDER STATE LAW, CRIMINAL JURISDICTION AS"JUSTICIABLE MATTER" IN INDIAN COUNTRY OVER INDIANS ACCUSED OF MAJOR CRIMES ENUMERATED UNDER THE INDIAN MAJOR CRIMES ACT-WHICH ARE UNDER EXCLUSIVE FEDERAL JURISDICTION?
What the Court decided
Holding
For MCA purposes, land reserved for the Creek Nation since the 19th century remains “Indian country.” Reversed.
- Result
- Reversed
The vote
From the opinions
“I agree with THE CHIEF JUSTICE that the former Creek Nation Reservation was disestablished at statehood and Oklahoma therefore has jurisdiction to prosecute petitioner for sexually assaulting his wife’s granddaughter.”
What's next
The Supreme Court has finished its review. Any further proceedings in Oklahoma must account for its ruling, but their exact form is not specified.
Why it matters
The ruling settles that the reservation remains Indian country for purposes of the Indian Major Crimes Act.
Documents
Docket activity
New analysis added
AI analysis generated: Impact Analysis
AI analysis generated: Opinion Summary
Case data updated: summary, question_presented, generation_metadata
New analysis added
Show 7 moreShow fewer
AI analysis generated: Case Briefing
New analysis added
AI analysis generated: Decision Record
New analysis added
Opinion added: opinion
Brief added: Petition
Brief added: Questions Presented
More questions
- What did McGirt v. Oklahoma decide?
- It decided that land reserved for the Creek Nation since the 19th century remains “Indian country” for the Indian Major Crimes Act.
- How did the ruling affect Oklahoma’s authority?
- For certain major crimes involving Native Americans in the historic Creek reservation, federal authorities—not Oklahoma courts—have exclusive power to prosecute.
- Did the Supreme Court overturn the Oklahoma ruling?
- Yes. It overturned the Oklahoma Court of Criminal Appeals’ ruling (reversed).
- What happens next in McGirt v. Oklahoma?
- The Supreme Court’s review is over. Any further Oklahoma proceedings must account for its ruling, but their exact form is not specified.
Sources
Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.