{"id":109,"date":"2026-07-22T02:52:10","date_gmt":"2026-07-22T02:52:10","guid":{"rendered":"https:\/\/fedlaws.org\/?p=109"},"modified":"2026-07-22T02:52:10","modified_gmt":"2026-07-22T02:52:10","slug":"18-usc-3231-federal-criminal-jurisdiction-charges-and-appeals","status":"publish","type":"post","link":"https:\/\/fedlaws.org\/?p=109","title":{"rendered":"18 USC 3231: Federal Criminal Jurisdiction, Charges, and Appeals"},"content":{"rendered":"

Under 18 U.S.C. 3231<\/strong>, federal district courts hold exclusive original jurisdiction over every offense against the laws of the United States, and state courts keep their authority over violations of state law. That two-sentence statute is the doorway to the entire federal criminal system. It decides that a federal drug indictment, a wire fraud case, or a terrorism charge belongs in a U.S. district court and nowhere else, while also making clear that federal criminal law does not displace the states.1<\/a><\/sup>Office of the Law Revision Counsel. 18 U.S.C. 3231 – District Courts<\/a><\/span><\/p>\n

What the Statute Actually Says<\/h2>\n

The text is short. The first sentence gives federal district courts “original jurisdiction, exclusive of the courts of the States, of all offenses against the laws of the United States.” The second sentence adds that “nothing in this title shall be held to take away or impair the jurisdiction of the courts of the several States under the laws thereof.”1<\/a><\/sup>Office of the Law Revision Counsel. 18 U.S.C. 3231 – District Courts<\/a><\/span><\/p>\n

“Exclusive” is the operative word in the first sentence. A state judge has no authority to preside over a purely federal prosecution, such as counterfeiting U.S. currency or defrauding a federal agency. The second sentence is a savings clause: federal jurisdiction does not swallow state criminal law. If conduct violates both federal and state statutes, each government can prosecute under its own laws. The constitutional footing sits in Article III, Section 2, which extends judicial power to “all Cases, in Law and Equity, arising under this Constitution, the Laws of the United States, and Treaties.”<\/p>\n

Why the Same Conduct Can Be Prosecuted Twice<\/h2>\n

Because 3231 preserves state authority, a person whose act breaks both federal and state law can face prosecution in either system, or both. Under the separate sovereigns doctrine, the Double Jeopardy Clause does not bar successive prosecutions by different sovereigns because each derives its power from a different source. The Supreme Court reaffirmed this in Gamble v. United States<\/em> (2019), upholding a federal firearms conviction after the defendant had already been convicted in Alabama state court for the same gun possession.<\/p>\n

Parallel prosecutions are constitutionally permitted, but they are not routine. The Department of Justice follows an internal rule known as the Petite Policy, which tells federal prosecutors not to bring a case after a state prosecution unless federal interests were left “demonstrably unvindicated” by the state result. Courts do not enforce the Petite Policy; it is a self-imposed restraint, not a legal bar. A defendant in a successive prosecution can urge the U.S. Attorney’s office to apply it, but cannot force a judge to.<\/p>\n

Which Crimes Fall Under Federal Jurisdiction<\/h2>\n

Section 3231 does not itself list federal crimes. It just says federal courts hear them. The list of “offenses against the laws of the United States” is what Congress has written into the U.S. Code, and Congress’s authority to write them comes mainly from two sources: the Commerce Clause and its power over federal territory and property.<\/p>\n

The Commerce Clause Reach<\/h3>\n

Most federal criminal statutes trace their authority to Congress’s power to regulate interstate commerce. That is why federal crimes usually require some tie to activity crossing state lines, such as using the internet to commit fraud, moving drugs across state borders, or trafficking firearms between states. Courts read that connection broadly. In Gonzales v. Raich<\/em> (2005), the Supreme Court held that Congress could criminalize marijuana cultivation for personal medical use inside a single state, reasoning that local economic activity can have a substantial cumulative effect on interstate markets.<\/p>\n

The reach has limits. In United States v. Lopez<\/em> (1995), the Court struck down the Gun-Free School Zones Act, finding that possessing a firearm near a school had no substantial connection to interstate commerce. Lopez<\/em> remains the leading case for defendants who argue that Congress overstepped when it federalized a particular crime.2<\/a><\/sup>SUPREME COURT OF THE UNITED STATES. United States v. Lopez (93-1260)<\/a><\/span><\/p>\n

Federal Land, Waters, and Special Jurisdiction<\/h3>\n

Federal jurisdiction also reaches crimes committed in places under federal control. Under 18 U.S.C. 7, the “special maritime and territorial jurisdiction” of the United States covers the high seas, vessels flying the U.S. flag, land owned or reserved by the federal government (military bases, national parks, federal courthouses), U.S. aircraft over international waters, U.S. embassy and consulate grounds abroad, and spacecraft registered to the United States.3<\/a><\/sup>Office of the Law Revision Counsel. 18 U.S. Code 7 – Special Maritime and Territorial Jurisdiction of the United States Defined<\/a><\/span><\/p>\n

A crime committed on a military installation or inside a national park is a federal offense, even if it would ordinarily look like a matter for state court. A bar fight at a national park lodge or a DUI on a military base can land the driver in federal court instead of the local system.<\/p>\n

The Main Categories of Federal Crime<\/h3>\n

Congress has created hundreds of federal offenses spread across the U.S. Code. The most commonly prosecuted ones cluster around a few areas:<\/p>\n