Warrant
Warrant: A written order from a judge or magistrate that authorizes an action, such as an arrest or a search. Under the Fourth Amendment, a warrant may issue only on probable cause, supported by oath or affirmation, and must particularly describe the place to be searched and the persons or things to be seized. In federal court, Federal Rules of Criminal Procedure 4 and 41 govern arrest and search warrants.
What warrant means
In practice, you will see warrant in pleadings, motions, orders and court rules. The definition above explains the general meaning. Even so, the meaning can shift with context. Therefore, always read it alongside the rule or document where it appears.
Where warrant comes up
The term is used across many kinds of cases. For example, you may see it in pleadings, motions and court orders. To see it in context, browse the motions and procedures library or the Learn the Law topics.
Read the source: Probable cause.
How to research the term
Start with the primary source. For example, if warrant appears in a federal rule, read the rule itself and its official notes. After that, check your court’s local rules and any standing orders from the judge. In addition, search recent decisions from your own state or federal district. They show how courts read warrant in practice. Because state rules often differ, our state procedures guide links to each state’s official rules. Above all, make sure the version you read is still in force.
You can read the current federal court rules online for free.
Related legal terms
- Voir dire: the process of questioning prospective jurors to select a jury. Under Federal Rule of Civil Procedure 47(a), the court may let the parties or their lawyers examine prospective jurors or may examine them itself.
- Waiver: the voluntary giving up of a known right, claim or privilege.
- Ward of the court: a minor or a legally incapacitated adult placed under the protection of a court, usually with a guardian appointed to make decisions for him or her. A competent adult does not become a ward of the court by hiring a lawyer; the client keeps the right to direct the representation and may represent himself or herself.
- Warehouse receipt: a receipt issued by a person engaged in the business of storing goods for hire, as defined in UCC § 1-201(b)(42).
Why precise terms matter
Courts read legal terms closely. As a result, knowing the exact meaning of a word helps you follow orders, rules and filings. Each glossary entry on Lawtopolis is short on purpose and links to the pages where the term is used.
Sources
Sources last reviewed: 2026-10-24
Lawtopolis provides legal information and education, not legal advice. Using this site does not create an attorney-client relationship. Laws and court rules vary by jurisdiction and change over time; verify every authority against the official source and consult a licensed attorney in your jurisdiction about your situation.