A writ from a court commanding police to perform specified acts WordNet 3.0 & Open English WordNet

A warrant is generally an order that serves as a specific type of authorization, that is, a writ issued by a competent officer, usually a judge or magistrate, that permits an otherwise illegal act that would violate individual rights and affords the person executing the writ protection from damages if the act is performed. Wikipedia

A specific type of authorization Wikipedia Disambiguation

A form of specific authorization Wikipedia Disambiguation

An order that serves as a specific type of authorization Wikidata

A judicial writ authorizing an officer to make a search, seizure, or arrest, or to execute a judgment. Wiktionary

Judicial writ. Wiktionary (translation)