Jurisdiction over crimes on Indian reservations is split among tribal, federal, and state courts, and which one handles a given case turns on four questions: whether the crime happened in “Indian country,” whether the offender is legally an Indian, whether the victim is an Indian, and whether the reservation sits in a state that Congress placed under Public Law 280. Get any of those wrong and the case can land in the wrong court, or in no court at all.
Is the Location “Indian Country”?
The whole framework applies only inside areas that federal law defines as Indian country under 18 U.S.C. § 1151.1Office of the Law Revision Counsel. 18 U.S.C. 1151 – Indian Country Defined That includes three categories of land:
- All land within the boundaries of any Indian reservation under federal jurisdiction, including privately owned parcels and roads running through the reservation.
- Dependent Indian communities: land set aside by the federal government for Indian use that remains under federal supervision, even outside a formal reservation.
- Indian allotments where Indian title has not been terminated, including rights-of-way crossing those parcels.
Whether a given piece of land qualifies is often the first fight in a criminal case. In McGirt v. Oklahoma (2020), the Supreme Court held that the Muscogee (Creek) Nation’s reservation, covering much of eastern Oklahoma including much of Tulsa, had never been dissolved by Congress and remained Indian country for federal criminal law.2Supreme Court of the United States. McGirt v. Oklahoma, No. 18-9526 The reasoning was later extended to several other Oklahoma tribal reservations, shifting a large volume of cases out of state court.
Who Counts as an “Indian”
Federal law does not supply a single bright-line test. Courts use what is sometimes called the Rogers test, which asks two things: whether the person has some degree of Indian ancestry, and whether the person is enrolled in or affiliated with a federally recognized tribe. Formal enrollment satisfies the second prong, but other evidence of tribal ties has been accepted. When Indian status is an element of the charged offense, the government must prove it beyond a reasonable doubt.
Someone with Indian ancestry but no tribal enrollment or meaningful connection to a recognized tribe may not qualify. A person adopted into a tribe without any Indian ancestry does not qualify either. Both prongs have to be met.
Who Prosecutes Which Combination
Outside of Public Law 280 states (covered below), jurisdiction inside Indian country generally breaks down by who the offender and victim are.
Indian Offender, Indian Victim
Tribal courts have inherent authority to prosecute their own members for violations of tribal law and typically handle misdemeanor-level offenses: assaults, theft, disorderly conduct, DUI, and similar conduct.3Indian Affairs. What Is the Jurisdiction of Tribal Courts4Office of the Law Revision Counsel. 25 U.S.C. 1302 – Constitutional Rights5Office of Justice Programs. Tribal Law and Order Act – Enhanced Sentencing Authority
For serious felonies, the federal government takes over under the Major Crimes Act, 18 U.S.C. § 1153. That statute gives federal courts jurisdiction over specific violent felonies by an Indian in Indian country, including murder, manslaughter, kidnapping, maiming, sexual abuse, incest, felony assault, assault on a child under 16, felony child abuse or neglect, arson, burglary, robbery, and felony theft.6Office of the Law Revision Counsel. 18 U.S.C. 1153 – Offenses Committed Within Indian Country The FBI and Bureau of Indian Affairs are the primary investigating agencies. Because tribes and the federal government are separate sovereigns, a tribe can prosecute the same conduct under tribal law without triggering double jeopardy.
Indian Offender, Non-Indian Victim
The same split applies. Federal courts handle Major Crimes Act offenses; tribal courts handle the rest under tribal law. States generally lack jurisdiction over Indian defendants for crimes committed in Indian country.
Non-Indian Offender, Indian Victim
Federal jurisdiction has historically covered these cases under the General Crimes Act, 18 U.S.C. § 1152.7Office of the Law Revision Counsel. 18 U.S.C. 1152 – Laws Governing When no specific federal criminal statute covers the conduct, prosecutors borrow state criminal law through the Assimilative Crimes Act, 18 U.S.C. § 13.8Office of the Law Revision Counsel. 18 U.S.C. 13 – Assimilative Crimes Act
In 2022, the Supreme Court added states to the mix. Oklahoma v. Castro-Huerta held that the federal government and states have concurrent jurisdiction to prosecute crimes by non-Indians against Indians in Indian country, reasoning that Indian country is part of the state’s territory and the General Crimes Act does not preempt state authority.9Supreme Court of the United States. Oklahoma v. Castro-Huerta, No. 21-429 The ruling applies nationwide. Whether a state actually prosecutes varies by resources and local policy. Tribal courts may also prosecute if the offense falls within the VAWA categories discussed below.
Non-Indian Offender, Non-Indian Victim
State courts have jurisdiction, even inside Indian country. The General Crimes Act carves out offenses in which no Indian is involved as either perpetrator or victim.10Bureau of Indian Affairs. Solicitor Says U.S. Has Criminal Jurisdiction on Reservations Where Tribes Do Not Tribal courts also lack jurisdiction over non-Indian defendants under Oliphant v. Suquamish Indian Tribe (1978), which held that tribes have no inherent criminal authority over non-Indians without specific authorization from Congress.11Justia Law. Oliphant v. Suquamish Indian Tribe, 435 U.S. 191 (1978)
Public Law 280 Changes the Answers
Congress rewrote the map for certain states in 1953. Public Law 280, codified at 18 U.S.C. § 1162, transferred criminal jurisdiction from the federal government to six mandatory states:12Office of the Law Revision Counsel. 18 U.S.C. 1162 – State Jurisdiction Over Offenses Committed by or Against Indians in the Indian Country
- Alaska
- California
- Minnesota (except the Red Lake Reservation)
- Nebraska
- Oregon (except the Warm Springs Reservation)
- Wisconsin
In these states, state police investigate and state courts prosecute crimes committed by or against Indians on reservation land, using the same laws that apply everywhere else in the state. The Major Crimes Act and General Crimes Act do not apply in PL 280 areas, so federal prosecutors are largely out of the picture. Tribal courts keep their authority over tribal members under tribal law, but they are no longer the primary criminal justice system.
Congress also allowed other states to assume jurisdiction voluntarily, and several did so in part, sometimes covering only certain reservations or offenses. PL 280’s reach therefore varies by state and by reservation. Tribes in mandatory states can also request that the federal government reassume jurisdiction, a process called retrocession that requires tribal consent and the U.S. Attorney General’s agreement. Several tribes have retroceded, restoring the standard federal-tribal framework on their land. Don’t assume a reservation in California or Wisconsin automatically falls under state jurisdiction. Check whether that particular tribe has retroceded.
The VAWA Exception for Non-Indian Defendants
Congress carved the biggest hole in Oliphant through the Violence Against Women Act. The 2013 reauthorization gave tribes “special domestic violence criminal jurisdiction” to prosecute non-Indians for domestic violence, dating violence, and violations of protection orders committed in Indian country.13U.S. Department of Justice. 2013 and 2022 Reauthorizations of the Violence Against Women Act (VAWA) The 2022 reauthorization renamed it “special Tribal criminal jurisdiction” and expanded the covered offenses to include:14Office of the Law Revision Counsel. 25 U.S.C. 1304 – Tribal Jurisdiction Over Covered Crimes
- Domestic violence and dating violence
- Sexual violence
- Stalking
- Child violence
- Sex trafficking
- Obstruction of justice
- Assault of tribal justice personnel
- Violations of protection orders
For most of these crimes, the victim must be Indian for tribal jurisdiction to apply. Obstruction of justice and assault of tribal justice personnel are the exceptions, and can be prosecuted by the tribe even when the victim is non-Indian. The expanded categories took effect October 1, 2022, and tribes must opt in and meet procedural safeguards before exercising the authority.
Cases That Fall Through the Cracks
Even when the jurisdictional rules point clearly to a prosecutor, cases still fail to move. Federal prosecutors carry heavy caseloads and are often based far from the reservations they serve. In 2020, U.S. Attorney’s Offices declined 22 percent of Indian country matters, with insufficient evidence cited in roughly 83 percent of those declinations; in prior years, the declination rate hovered around 32 to 33 percent.15U.S. Department of Justice. Indian Country Investigations and Prosecutions Report Declined cases do not automatically move to tribal court, and tribal courts often lack the funding, staff, and detention capacity to absorb them, with sentencing capped well below federal levels. This gap is one of the reasons Congress passed the Tribal Law and Order Act and expanded VAWA jurisdiction.
Every rule laid out here can shift with a specific tribal-state agreement, a VAWA opt-in, or a retrocession. The jurisdictional question is rarely as simple as reading a chart, which is why counsel familiar with the specific reservation matters when a crime occurs on tribal land.