A federal civil lawsuit is a legal dispute in which a plaintiff asks a court for relief; a federal criminal case is a prosecution by the United States alleging a violation of federal criminal law. The key differences are who brings the case, what the parties must prove, and what the court may order. Not every civil dispute qualifies for federal court, and procedures depend on the claim and applicable law.
Federal civil lawsuit vs. criminal case at a glance
| Issue | Federal civil lawsuit | Federal criminal case |
|---|---|---|
| Who brings the case | A plaintiff, such as a person or business, brings a claim against a defendant. | The United States prosecutes a defendant, usually through a U.S. attorney. |
| Purpose | Resolve a legal dispute and grant relief if the plaintiff proves the claim. | Determine whether the defendant committed the charged federal crime and, if convicted, impose a sentence. |
| How it begins | The plaintiff files a complaint and serves it on the defendant. | The government initiates a prosecution; prosecutors and, in many cases, a grand jury are early actors. |
| Trial burden of proof | The plaintiff generally must prove the claim by a preponderance of the evidence—more likely than not. | The government must prove guilt beyond a reasonable doubt. |
| Possible result | Damages, an injunction, a declaration of rights, or other relief. | Acquittal or conviction; a conviction can lead to imprisonment, a fine, restitution, or supervision conditions. |
| Main procedural rules | Federal Rules of Civil Procedure | Federal Rules of Criminal Procedure |
The U.S. Courts describes a federal civil case as a legal dispute between two or more parties. A criminal case, by contrast, is brought by the government. These are general distinctions: jurisdiction and procedure depend on the particular claim, statute, and court. U.S. Courts: Civil Cases; U.S. Courts: Criminal Cases; U.S. Courts: About U.S. District Courts.
Who starts each kind of case?
A civil lawsuit begins with a plaintiff’s complaint
The plaintiff files a complaint describing the alleged harm, how the defendant allegedly caused it, why the court has jurisdiction, and what relief the plaintiff wants. The complaint must then be served on the defendant. A person who believes they were harmed may bring a civil claim if the law and jurisdictional requirements allow it. The U.S. Courts’ civil-case overview explains this process.
The government initiates a criminal prosecution
A crime victim can report alleged conduct to law enforcement, but does not personally file federal criminal charges in district court. The prosecution is brought by the United States, usually through a U.S. attorney’s office working with a law-enforcement agency. The U.S. Courts notes that a grand jury reviews evidence presented by the prosecutor and decides whether there is enough to require the defendant to stand trial. Criminal Cases; FAQs: Filing a Case.
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What must be proved?
Civil: preponderance of the evidence
In most civil trials, the plaintiff must show that the claim is more likely true than not. This is called the preponderance-of-the-evidence standard. It is a comparative standard, not an official percentage conversion.
Criminal: beyond a reasonable doubt
In a criminal trial, the government must prove the defendant’s guilt beyond a reasonable doubt. The defendant does not have to prove innocence. The higher burden reflects the stakes of a criminal conviction, which can include loss of liberty.
The standards are not interchangeable: a fact-finder applies the relevant law to the evidence under the judge’s instructions, using the burden that applies to that case. Civil Cases; Criminal Cases.
What can happen after a decision?
Civil case: relief for the plaintiff
If the plaintiff proves the claim, the court may award money damages, order someone to stop or take an action, or declare the parties’ legal rights. A civil judgment is not itself a criminal sentence.
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Criminal case: acquittal or conviction and sentence
A criminal defendant may be acquitted or convicted. A conviction can result in a sentence that includes imprisonment, a fine, restitution to victims, or supervision conditions. Restitution in a criminal case does not change the fact that the case is a prosecution brought by the government. U.S. Courts: Criminal Cases.
How do trials and procedures differ?
Both civil and criminal federal cases may be tried to a petit jury. A civil case may also be decided by a judge without a jury. Federal petit juries comprise 6 to 12 people, according to the U.S. Courts’ explanation of jury types; the precise jury arrangements depend on the proceeding. Types of Juries.
Civil cases may include discovery, through which parties exchange information. Criminal discovery is more limited and can be subject to restrictions, including protections for informants and witnesses. At arraignment, a criminal defendant enters a plea: a guilty plea can lead to sentencing, while a not-guilty plea moves the case toward trial. The two court systems use separate procedural rules: the U.S. Courts lists the Civil Rules as last amended in 2025 and the Criminal Rules as last amended in 2023. Consult the current rules for a live case, because amendments and case-specific procedures matter. Federal Rules of Civil Procedure; Federal Rules of Criminal Procedure.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Can the same conduct lead to both cases?
Potentially. Conduct may lead to a civil claim and a separate criminal prosecution, because the cases serve different purposes and use different procedures. Whether either case is brought depends on the facts and applicable law; one does not automatically follow from the other.
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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteWhy does “federal” matter?
Federal district courts have jurisdiction only where the Constitution and federal law authorize it. A dispute does not become a federal case merely because it is serious or involves parties in different places. State courts handle many civil disputes and criminal prosecutions under state law. Which court can hear a specific matter depends on its legal basis and circumstances; this comparison is general information, not a jurisdiction determination or advice for an individual case. About U.S. District Courts.
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