词源与由来: From Old French 'plaintif' meaning 'complaining,' derived from 'plainte' (complaint), ultimately from Latin 'plangere' (to lament or beat one's breast in grief).
The plaintiff sits at the counsel table closest to the jury box in most courtrooms, a traditional arrangement reflecting their burden of proof. The plaintiff presents their case first, calling witnesses and introducing evidence during the case-in-chief. Throughout trial, the plaintiff must maintain standing by demonstrating an ongoing injury that the court can redress. If the plaintiff fails to meet their burden of proof, the judge may grant a directed verdict in favor of the defendant.
Judge: "Counsel for the plaintiff, you may begin your opening statement."
Attorney: "Your Honor, the plaintiff seeks compensatory damages in the amount of $500,000 for injuries sustained due to the defendant's negligence."
Judge: "The plaintiff has rested their case. Defense counsel, are you prepared to proceed?"
Students often confuse plaintiff with prosecutor. A plaintiff brings a civil action for damages or equitable relief, while a prosecutor brings criminal charges on behalf of the state.
Lujan v. Defenders of Wildlife, 504 U.S. 555 (1992)
Established the modern three-part standing test requiring injury in fact, causation, and redressability.
Wal-Mart Stores, Inc. v. Dukes, 564 U.S. 338 (2011)
Tightened the commonality requirement for class action plaintiffs, requiring common contention capable of classwide resolution.
Ashcroft v. Iqbal, 556 U.S. 662 (2009)
Required plaintiffs to plead factual content allowing a reasonable inference of liability (plausibility pleading standard).
| Plaintiff | Petitioner |
|---|---|
| Files a complaint in a civil action | Files a petition in special proceedings |
| Used in lawsuits for damages or equity | Used in divorces, habeas corpus, appeals |
| Opposes a defendant | Opposes a respondent |
| Common in trial courts | Common in appellate and family courts |
| Initiates adversarial litigation | Requests specific court action or review |
What standing requirements must a plaintiff meet to bring a federal lawsuit?
Under Article III, a plaintiff must demonstrate injury in fact (a concrete, particularized harm), causation (traceable to the defendant), and redressability (a favorable decision would remedy the injury).
Can there be multiple plaintiffs in a single lawsuit?
Yes, under FRCP 20 if claims arise from the same transaction and share common questions of law or fact. In class actions under Rule 23, a named plaintiff represents an entire class.
What remedies can a plaintiff seek in a civil case?
Compensatory damages, punitive damages, equitable relief (injunctions, specific performance), declaratory relief, or restitution, depending on the cause of action and harm suffered.
The defendant is the party against whom a lawsuit or criminal charge is brought. In civil cases, the...
The burden of proof refers to a party's obligation to prove the facts necessary to support their cla...
The verdict is the formal decision or finding made by a jury (or judge in a bench trial) on the fact...
Defense counsel is the attorney who represents the defendant in civil or criminal proceedings. In cr...
