Rape is prosecuted as a federal crime when the offense has a specific connection to federal authority. In most cases that means the assault happened on federal land, inside a federal prison or detention facility, in Indian Country, aboard a U.S.-flagged ship or aircraft, or involved crossing state lines or trafficking. Everything else — the overwhelming majority of sexual assault cases in the United States — stays in state court under state law. Federal jurisdiction is the exception, triggered by a specific hook, and when it attaches the penalties are usually heavier than what a state would impose.
The Jurisdictional Triggers
Federal courts do not have general authority over violent crime. For a sexual assault to become a federal case, it has to fall within what the statute calls the “special maritime and territorial jurisdiction of the United States,” or satisfy some other specifically federal interest written into a particular criminal law.1Office of the Law Revision Counsel. 18 U.S. Code 7 – Special Maritime and Territorial Jurisdiction of the United States Defined In practice, these are the triggers that pull a sexual assault into the federal system:
- Federal land and facilities: military bases, national parks, federal courthouses, Veterans Affairs hospitals, and other property owned or controlled by the federal government.
- Federal prisons and detention facilities, including any jail or holding facility operated by or under contract with a federal agency.
- Indian Country, under the Major Crimes Act and related statutes.
- Interstate or foreign commerce, which brings in sex trafficking, transporting a victim across state lines, and using interstate communications to facilitate sexual abuse.
- U.S.-flagged vessels on the high seas and U.S.-registered aircraft in international airspace.
- U.S. spacecraft on the U.S. registry while in flight.
The definition stretches further than most people assume. It reaches guano islands claimed by the United States and locations outside the jurisdiction of any nation when the offense involves a U.S. national. Not every building on federal property automatically carries exclusive federal jurisdiction, though. Some federal facilities operate under shared or partial jurisdiction with the surrounding state, which can affect whether a federal or state prosecutor takes the case.2General Services Administration. Federal Facilities Jurisdictional Status
Sexual Assault in Indian Country
One of the most common paths to federal prosecution for sexual assault is Indian Country, and the rules are specific. Under the Major Crimes Act, a Native American who commits a felony sexual offense on tribal land is prosecuted in federal court under the same penalties that apply in areas of exclusive federal jurisdiction.3Office of the Law Revision Counsel. 18 U.S. Code 1153 – Offenses Committed Within Indian Country
Who prosecutes depends on who the offender and victim are. When a Native person commits a sexual assault on tribal land, federal and tribal courts both have authority. When a non-Native person commits a sexual assault against a Native victim on tribal land, the case falls under federal jurisdiction through the General Crimes Act. The one combination that stays with the state is when both the offender and victim are non-Native. Some tribes have also opted into Special Domestic Violence Criminal Jurisdiction, which allows tribal courts to prosecute non-Native offenders for sexual assault and domestic violence.
Sex Trafficking and Crossing State Lines
Sex trafficking is almost always federal because it almost always involves interstate or foreign commerce. Federal law makes it a crime to recruit, transport, harbor, or obtain a person for commercial sex through force, fraud, or coercion. When the victim is under 18, no force, fraud, or coercion needs to be shown.4Office of the Law Revision Counsel. 18 U.S. Code 1591 – Sex Trafficking of Children or by Force, Fraud, or Coercion
A separate statute reaches anyone who knowingly transports a minor across state lines or international borders for sexual activity. That offense carries a mandatory minimum of 10 years and a maximum of life. The same law covers U.S. citizens who travel abroad to engage in sexual acts with minors, with penalties up to 30 years, and it reaches people who merely arrange or facilitate that travel for someone else.5Office of the Law Revision Counsel. 18 U.S. Code 2423 – Transportation of Minors
The Federal Charges Once Jurisdiction Attaches
When a sexual assault lands in federal court, the charges come from Chapter 109A of Title 18. Federal law does not use state labels like “first-degree rape.” It uses four main offenses.
Aggravated Sexual Abuse
The most serious offense. It covers sexual acts committed through force, threats of death or serious injury or kidnapping, or by rendering the victim unconscious or drugging them. The sentencing range runs from any term of years up to life.6Office of the Law Revision Counsel. 18 U.S. Code 2241 – Aggravated Sexual Abuse When the victim is a child under 12, or the defendant crossed state lines to commit the offense against a child under 12, the mandatory minimum is 30 years with a maximum of life. A second conviction carries a mandatory life sentence.
Sexual Abuse
This offense covers sexual acts committed through threats that fall short of death, serious injury, or kidnapping, acts committed against someone incapable of understanding what is happening, acts against someone physically unable to resist or communicate unwillingness, and acts committed without consent through coercion. The penalty is a fine and imprisonment for any term of years up to life.7Office of the Law Revision Counsel. 18 U.S. Code 2242 – Sexual Abuse
Sexual Abuse of a Minor or Ward
Two situations fall here. First, sexual acts with someone at least 12 but under 16 where the defendant is at least four years older. Second, sexual acts with someone in official detention who is under the defendant’s custodial or supervisory authority, which captures the guard-over-prisoner scenario. Either version carries up to 15 years.8Office of the Law Revision Counsel. 18 U.S. Code 2243 – Sexual Abuse of a Minor or Ward
Abusive Sexual Contact
Sexual contact that stops short of a full “sexual act” is prosecuted separately, with penalties scaled to what the contact would have been charged as if it had been a sexual act: up to 10 years at the aggravated-abuse level, up to 3 years at the sexual-abuse level, and up to 2 years at the minor-or-ward level. Contact involving a child under 12 doubles those maximums for most categories, and contact that would qualify as aggravated sexual abuse of a child carries any term of years up to life. Non-consensual contact standing alone carries up to 2 years.9Office of the Law Revision Counsel. 18 U.S. Code 2244 – Abusive Sexual Contact
The federal definition of a “sexual act” is broader than many people assume. It reaches penetration however slight, oral contact, penetration by hand or object with abusive or sexual intent, and intentional genital touching of a child under 16 with that same intent.10Office of the Law Revision Counsel. 18 U.S. Code 2246 – Definitions for Chapter 109A
One more feature matters for timing: Chapter 109A offenses, along with sex trafficking and child exploitation offenses, have no statute of limitations. The government can bring charges at any time, no matter how many years have passed. State systems vary widely, and some still impose time limits, so a case that is time-barred under state law may still be prosecutable federally.
When Both State and Federal Prosecutors Could Charge
Some assaults violate both state and federal law. An assault on a military base inside a state that criminalizes the same conduct is the common example. Both governments have authority, and prosecuting one after the other does not violate double jeopardy. Under the dual sovereignty doctrine, the Supreme Court has held that state and federal governments are separate sovereigns, so a prosecution by one does not bar a prosecution by the other.11Constitution Annotated. Fifth Amendment – Dual Sovereignty Doctrine
Dual prosecutions for the same sexual assault are rare in practice. The Department of Justice follows an internal guideline, commonly called the Petite policy, that generally discourages federal prosecution after a state has handled the case unless a substantial federal interest went unaddressed. Which system takes the lead usually turns on who can bring the stronger case, which penalties fit the conduct, and whether a genuine federal interest is on the table.
One factor often tips toward federal prosecution: the federal system has no parole for offenses committed after November 1, 1987. A 20-year federal sentence will be served close to in full. In many state systems, parole eligibility can produce release well before the sentence runs out, and prosecutors weigh that difference when deciding where to charge.
How To Report When the Case May Be Federal
If an assault occurred on federal property or otherwise falls under one of the federal triggers, the primary reporting channel is the FBI, either through an online tip or a local field office.12Department of Justice. Report a Crime or Submit a Complaint In an emergency, call 911 regardless of jurisdictional questions. Local police can respond first, and the question of which prosecutor’s office takes the case gets sorted afterward.
In the military context, the Department of Defense’s Sexual Assault Prevention and Response program offers two reporting paths. An unrestricted report launches a formal investigation by military law enforcement and notifies the chain of command. A restricted report gives the victim confidential access to legal advice, healthcare, and advocacy without triggering an investigation or alerting command. Service members, adult military dependents, and DoD civilian employees can choose either option.13SAPR.mil. Reporting Options The National Sexual Assault Hotline at 1-800-656-4673 is available for confidential support whether the case ends up federal or state.