Federal Criminal Charges — What They Are and How They Work

From complaint to conviction: the anatomy of a federal criminal case

By John Kirby

Federal Criminal Defense Attorney • Arizona • California • Federal Courts Nationwide

2026-07-03

Federal Criminal Charges: An Overview

In the realm of criminal law, federal charges can be particularly daunting due to their complexity and broad jurisdictional reach. Unlike state-level prosecutions which are often confined to a specific area or crime type, federal criminal charges can arise from any number of situations where the government asserts its unique authority over certain types of crimes or actions that cross state lines.

Federal criminal cases begin in one of three ways: through a grand jury indictment, an information filed by the prosecutor without seeking an indictment (often following a defendant's waiver), or via a criminal complaint issued directly by law enforcement. Each method has its own implications and procedural nuances.

Indictment vs Information vs Complaint

The most traditional route to bring federal charges is through an indictment. This process involves a grand jury, which is composed of citizens who review evidence presented by the prosecution and decide whether there's sufficient reason to charge someone with a crime. If they agree, typically in a vote that requires at least 12 jurors, the defendant is formally charged via an indictment.

In contrast, when a prosecutor seeks to charge a person without going through a grand jury, they file an information. This often occurs after the accused consents (waives) their right to have charges brought by a grand jury, usually as part of a plea agreement. An information is faster and less rigorous than an indictment but carries similar weight in court.

The third method involves a prosecutor filing a criminal complaint, which is akin to an arrest warrant issued without the need for prior judicial approval. This approach is typically used when immediate action is necessary, such as preventing flight or destruction of evidence. The case then proceeds with a preliminary hearing where the judge determines if there's probable cause to hold the accused.

Felonies and Misdemeanors in Federal Law

In federal law, crimes are categorized based on their severity into felonies and misdemeanors. Felonies are more serious offenses that carry potential prison sentences of one year or more. They're further classified into classes A through E according to the maximum penalty prescribed:

• Class A: The most severe, punishable by death or life imprisonment.
• Classes B and C: Include serious crimes like major drug trafficking and certain types of fraud.
• Classes D and E: Less severe felonies such as tax evasion or lesser forms of fraud.

Misdemeanors, on the other hand, are less severe offenses generally punishable by up to one year in prison. They're categorized into classes A through C based on the severity:

• Class A: The most serious, potentially carrying a sentence of over one year.
• Classes B and C: Lesser misdemeanors with reduced penalties.

The federal system's classification scheme helps ensure that sentences are proportionate to the crime committed. For instance, mail fraud might be classified differently depending on its impact, ranging from a misdemeanor if it involves minimal amounts or no actual loss, up to a felony if substantial sums or significant harm result.

Jurisdiction and Dual Prosecution

Federal jurisdiction is expansive but not limitless. A crime becomes federal when it violates specific federal statutes or crosses state lines in some meaningful way. For example, interstate drug trafficking clearly falls under federal purview due to the Commerce Clause of the Constitution.

But what happens if both a state and federal government have grounds to prosecute for the same act? This is where dual prosecution comes into play. While it's technically possible for someone to be tried separately in state court after facing federal charges, there are practical limits on this due to the Petite Policy.

Note: For a specific example of how federal jurisdiction works in practice, consider United States v. Lopez, 514 U.S. 549 (1995), which established that Congress cannot use its Commerce Clause authority to regulate purely local activities.

The Petite Policy is a Department of Justice guideline aimed at preventing undue harassment by successive prosecutions for the same conduct. It advises against prosecuting someone federally if they've already faced state penalties for similar charges, unless there are compelling reasons related to national security or other critical interests.

Key Takeaways

Understanding how federal criminal cases operate can empower both defendants and their attorneys in navigating these complex proceedings:

• Become Familiar with Procedural Nuances: Knowing whether charges arise from an indictment, information, or complaint can influence early legal strategy.
• Categorize Crimes Properly: Accurately assessing if a charge is a felony or misdemeanor and understanding its classification within that category helps in predicting potential sentences.
• Examine Jurisdictional Elements: Scrutinizing whether federal courts truly have authority over the case can sometimes lead to dismissal based on lack of proper jurisdiction.
• Consider Dual Prosecution Risks: Being aware of Petite Policy guidelines may preemptively address concerns about successive prosecutions or mitigate their impact if they arise.

The intricacies of federal criminal charges require a nuanced understanding, but with knowledge and strategic planning, defendants can better protect their rights and interests through the legal process.

John Kirby

Cornell University Honors Graduate • Federal Criminal Defense Attorney

Licensed in Arizona, California, and federal courts nationwide. Decades of federal criminal defense experience. For direct representation, contact Kirby Criminal Law.