Federal Criminal Offenses: Categories and Examples

Federal criminal law encompasses a wide body of statutes defining conduct that Congress has made punishable under the authority of the United States government. This page covers how federal criminal offenses are defined, the statutory and constitutional mechanisms that bring a case into federal court, the most common offense categories prosecutors charge, and the boundaries that distinguish federal crimes from state offenses. The distinction carries significant practical consequences, including different sentencing structures, different investigative agencies, and different procedural rules.

Definition and scope

A federal criminal offense is any act or omission that violates a statute enacted by Congress and carries a criminal penalty — imprisonment, fine, or both. The authority to criminalize conduct flows from Congress's enumerated powers under Article I of the U.S. Constitution, including the Commerce Clause, the Necessary and Proper Clause, and specific grants of power over areas such as counterfeiting, bankruptcy, and immigration (U.S. Const. art. I, § 8). Most federal criminal statutes are codified in Title 18 of the United States Code (18 U.S.C. § 1 et seq.), though criminal provisions also appear in Title 21 (controlled substances), Title 26 (tax offenses), Title 31 (currency reporting), and elsewhere.

Federal offenses are divided into two primary classifications under 18 U.S.C. § 3559:

  1. Felonies — offenses carrying a maximum sentence of more than one year of imprisonment, further subdivided into Classes A through E based on the statutory maximum.
  2. Misdemeanors — offenses carrying a maximum sentence of one year or less, subdivided into Classes A, B, and C.
  3. Infractions — minor violations carrying no more than five days of imprisonment.

A Class A felony carries a maximum sentence of life imprisonment or death; a Class E felony carries a maximum between one and five years. This tiered structure feeds directly into the Federal Sentencing Guidelines, which calculate recommended sentencing ranges based on offense level and criminal history.

How it works

Federal criminal prosecution begins with an investigation conducted by a federal agency — the FBI, DEA, IRS Criminal Investigation, ATF, or Homeland Security Investigations, among others. Once sufficient evidence is gathered, the matter is referred to a U.S. Attorney's Office, whose prosecutors evaluate whether the evidence supports charges. For offenses punishable by imprisonment of more than one year, the Fifth Amendment requires presentment to a grand jury, which issues an indictment if it finds probable cause (U.S. Const. amend. V). Lesser offenses may be charged by information filed directly by the prosecutor.

Once charged, the case proceeds through federal criminal procedure, including arraignment, pretrial motions, discovery, and trial or plea. The prosecution must prove every element of the charged offense beyond a reasonable doubt. Sentencing follows conviction and, in most cases, is guided by the United States Sentencing Commission's Guidelines Manual, which assigns numerical offense levels and criminal history points to produce an advisory sentencing range (U.S. Sentencing Commission, Guidelines Manual).

For a broader orientation to how the court system processes these cases from intake to appeal, the home page of this resource provides a structural overview of the federal judiciary as a whole.

Common scenarios

Federal criminal dockets concentrate in offense categories that implicate federal interests — interstate commerce, national security, federal revenue, and federally regulated industries. The most frequently prosecuted offense categories, based on data published annually by the U.S. Sentencing Commission, include:

White-collar offenses frequently involve statutes that reach conduct across state lines, making federal jurisdiction straightforward to establish via the wire or mail fraud hooks. Federal prosecutors and U.S. Attorneys exercise broad charging discretion in selecting among available statutes.

Decision boundaries

The central boundary question is whether a given offense is federal, state, or both. Three structural factors drive the answer:

Jurisdictional nexus. Federal criminal statutes generally require some connection to a federal interest. Drug trafficking statutes require that the substance moved in or affected interstate or foreign commerce. The wire fraud statute requires use of interstate wire communications. Without the required nexus, the constitutional basis for federal prosecution is absent. Many violent crimes — assault, robbery, homicide — are primarily state offenses unless they occur on federal property, target federal officials, or are charged under a specific federal hook such as the Hobbs Act (18 U.S.C. § 1951).

Dual sovereignty. The Double Jeopardy Clause does not bar successive state and federal prosecutions for the same underlying conduct when each sovereign charges a distinct statutory offense. The Supreme Court reaffirmed this principle in Gamble v. United States, 587 U.S. 678 (2019). A defendant acquitted in state court for a shooting may still face federal civil rights charges under 18 U.S.C. § 242 if a federal interest — such as color of law — is present.

Prosecution choice. Even where federal jurisdiction exists, the decision to charge federally rather than deferring to state prosecutors is a policy choice. The Department of Justice's Principles of Federal Prosecution (USAM § 9-27.000) instruct prosecutors to charge federally when doing so serves a substantial federal interest and when state prosecution would not adequately vindicate that interest.

Comparing federal versus state criminal courts reveals further structural differences: federal courts apply the Federal Rules of Criminal Procedure (28 U.S.C. app.), while state courts apply their own procedural codes. Federal sentences are served in Bureau of Prisons facilities, not state institutions. For a direct comparison of the two court systems, see [Federal vs. State Courts](/federal