State vs. Federal Criminal Prosecutions

State and federal courts operate under different rules, with different prosecutors, judges, and sentencing structures. The vast majority of criminal charges—such as drug offenses, assault, theft, and DUI—are prosecuted in state courts under state law. Federal cases typically involve crimes that cross state lines, occur on federal property, or fall under a category of offenses defined by federal law, such as immigration fraud or customs violations. In some situations, the same crime can violate both state and federal law, giving prosecutors in both systems potential authority over a defendant. Learn how these two systems differ—from who polices and prosecutes, to how judges are selected and where sentences are served.

What Determines State vs. Federal Jurisdiction in a Criminal Case?

A state has jurisdiction over defendants who violate the laws of that state—the power to arrest, charge, try, and convict them. The federal government has power over defendants who commit criminal acts on federal property (for example, an assault in a national park) or whose criminal acts cross state lines (for example, a kidnapper who transports a victim from Iowa to Missouri). The federal government also has jurisdiction over a group of federally defined crimes, such as offenses related to immigration fraud and U.S. customs violations.

A state and the federal government can have “concurrent” power over a defendant when the same criminal activity violates both state and federal laws (for example, selling drugs or robbing banks). In these situations, state and federal prosecutors typically make case-by-case decisions as to whether a defendant will be prosecuted in state or federal court. Under the "dual sovereignty doctrine," it's possible (albeit exceptionally rare) for a defendant to be prosecuted and punished for an identical offense in state and federal court without violating the Double Jeopardy Clause. (Gamble v. United States, 587 U.S. 678 (2019).)

State vs. Federal Criminal System: At a Glance

Who Investigates State vs. Federal Crimes?

State and local law enforcement officers enforce and investigate violations of state law within their territorial jurisdiction—usually a municipality, city, county, or state. They are often organized into city or municipal police departments, county sheriff offices, and state patrol or investigation units.

Federal agencies with law enforcement authority enforce and investigate only federal crimes that fall within their agency's purview. For example, Drug Enforcement Administration (DEA) agents investigate federal drug crimes, and Immigration and Customs Enforcement (ICE) agents enforce federal immigration laws. The FBI can investigate any federal crime that doesn't fall under the exclusive jurisdiction of another federal agency.

Who Prosecutes State vs. Federal Cases?

Federal criminal prosecutions are handled by U.S. Attorneys, who are appointed by and ultimately responsible to the U.S. Attorney General. Ninety-four U.S. Attorneys' Offices fall under the Department of Justice.

State prosecutors—sometimes called district, state, county, or city attorneys—prosecute violations of state and local law. Depending on the state, the head prosecutor for the city, county, district, or state might be elected or appointed to the position.

How Are Defense Attorneys Assigned in State vs. Federal Court?

Most criminal defendants qualify for government-paid defense attorneys. Government-paid attorneys are usually employed either by an office of the Federal Public Defender or a state or county public defender office, although localities in some states maintain a list of private attorneys, paid by the government, in place of an office of public defenders. If a public defender office can't handle the case due to insufficient staffing, or because the office already represents a co-defendant, the court will appoint a private attorney, often called a “panel attorney,” who is paid by the court to represent the defendant.

Which Courts Handle State vs. Federal Criminal Cases?

Most federal criminal prosecutions occur in United States District Courts. There are 94 federal judicial districts. Each state has at least one federal district court, while some have two to four courts. Multiple federal district courts are typically divided geographically, such as the U.S. District Courts for the Northern District of Ohio and the Southern District of Ohio.

State criminal prosecutions are handled in local or state courts that carry titles, such as “superior court,” “municipal court,” “district court,” or “county court,” depending on the state and the seriousness of criminal charges.

How Are State and Federal Judges Selected?

Federal trial judges are known as District Court judges (or "Article III judges"). They are appointed for life by the President, subject to confirmation by the U.S. Senate. State court judges are typically initially appointed by governors and then are subject to election every few years. State court trial judges carry titles such as superior court judge, municipal court judge, and (in New York) supreme court judge. In both state and federal courts, magistrates may preside over pretrial hearings such as bail hearings, as well as less serious criminal trials.

Federal courts use the “all-purpose judge” system. This means that the same judge almost always presides over a case from beginning to end—that is, from a defendant’s first court appearance to final acquittal or sentencing. Some states also follow the all-purpose judge model. In many states, however, judges are specialized. For example, one judge may determine bail, another judge may hear pretrial motions, and a third judge may preside over a trial.

Where Do You Serve Time? State or Federal Prison?

A person convicted in state court and sentenced to imprisonment might spend time in local jail or state prison. Jails are short-term lockups, typically run by a city or county, that house pretrial defendants, inmates serving a misdemeanor sentence, and inmates serving time in jail as a condition of felony probation. State prisons handle long-term confinement of inmates serving felony sentences (usually more than one year).

A person convicted in federal court falls under the correctional authority of the Federal Bureau of Prisons (BOP). After sentencing, the BOP determines where to house offenders based on security and program needs. The BOP does not have a state jail equivalent for offenders serving short-term sentences but will often contract with a local jail to house a federal inmate with less than a year to serve.

Frequently Asked Questions on State vs. Federal Criminal Jurisdiction

If you're still looking for information, check out these answers to frequently asked questions on how state and federal criminal systems differ.

• What makes a crime a federal offense?
• Can you be charged by both the state and federal government for the same crime?
• Who decides whether a case goes to state or federal court?
• Is federal court worse than state court?
• What's the difference between a federal public defender and a state public defender?
• Where do you serve time if convicted in federal court?

What makes a crime a federal offense?

A crime becomes a federal offense when it violates a federal statute, occurs on federal property (like a national park or military base), crosses state lines, or involves a federally defined category of crime such as immigration fraud, drug trafficking across borders, or bank robbery.

Can you be charged by both the state and federal government for the same crime?

Yes. Under the "dual sovereignty doctrine," both a state and the federal government can prosecute you for the same conduct if it violates both state and federal law. This is rare in practice, but it is constitutional and was upheld by the Supreme Court in Gamble v. United States (2019).

Who decides whether a case goes to state or federal court?

Prosecutors on both sides make that call, typically based on the nature of the offense, available evidence, and resources. Many cases that could go either way are resolved through informal coordination between state and federal prosecutors.

Is federal court worse than state court?

Not necessarily "worse," but federal court is generally considered more severe in terms of sentencing. Federal cases are subject to the U.S. Sentencing Guidelines, which tend to result in longer sentences with less judicial discretion than many state systems.

What's the difference between a federal public defender and a state public defender?

Both provide government-funded legal representation to defendants who can't afford a private attorney. Federal public defenders are employed by the Office of the Federal Public Defender, a federally funded agency. In states, public defenders often work for state or county offices funded by state or local budgets. Some states use panel attorneys, who are private attorneys paid by the government to represent indigent defendants. All public defenders are licensed attorneys, though federal defenders often handle a narrower, more specialized caseload.

Where do you serve time if convicted in federal court?

Federal inmates are placed in a facility operated or contracted by the Federal Bureau of Prisons (BOP). Unlike state systems, there is no federal equivalent of a local jail for short sentences—though the BOP may contract with a local jail for inmates serving less than one year.