Written by attorneys · grounded in primary & secondary sources — see below
2 senses
1
The official title of a king.
2
In criminal proceedings in a monarchy, the designation for the prosecution as representative of the king.
Each sense below has its own examples, sources, and questions.
Sense 1
1
Sense 1
The official title of a king.
Sense 2
2
Sense 2
In criminal proceedings in a monarchy, the designation for the prosecution as representative of the king.
Examples6
Habeas Corpus Challenge in Rebellion
Rita Russell is detained by authorities during widespread unrest. Her counsel petitions for release under the writ. Rex opposes the petition and argues that public safety requires continued custody. The court weighs whether conditions justify denying the writ.
Abortion Statute Review
Raphael Rivera faces charges under an old criminal abortion law. Rex presents medical evidence that the procedure was not necessary to save the patient's life. The court examines whether the statute permits an exception when the mother's health is at serious risk. Judgment turns on the scope of the statutory defense.
Roland Rhodes sues a corporation in federal court after a rail accident. Rex contends that forum state tort rules govern the claim. The court must decide whether to apply state substantive law or a federal common law rule. Outcome depends on whether the issue is deemed procedural or substantive.
Erie Railroad Co. v. Tompkins304 U.S. 64, 78–80 (1938)
Landmark Designation Dispute
Redwood Bank owns a historic terminal building. Rex defends a city ordinance that bars major alterations. The bank claims the restriction destroys economic value without compensation. The court balances the owner's investment expectations against the public interest in preservation.
Penn Central Transportation Co. et al. v. New York City438 U.S. 104, 98 S.Ct. 2646, 57 L.Ed.2d 631 (1978)
Zoning Ordinance Challenge
Raymond Ramos purchases land for industrial use. Rex enforces a village zoning code that limits the property to residential development. Ramos argues the restriction leaves the land without viable economic purpose. The court assesses whether the zoning bears a substantial relation to public health and safety.
Village of Euclid Ohio v. Ambler Realty Co.272 U.S. 365, 47 S.Ct. 114, 71 L.Ed 303 (1926)
Expert Testimony Admissibility
Regina Robinson offers scientific testimony linking a medication to birth defects. Rex moves to exclude the evidence as unreliable. The court reviews whether the methods have gained general acceptance in the scientific community. Admissibility hinges on the expert's adherence to testable standards.
Daubert v. Merrell Dow Pharmaceuticals, Inc.509 U.S. 579, 592 (1993)
Frequently Asked1
How is rex used in case captions in a monarchy?+
Rex designates the prosecution as the representative of the king in criminal matters. The abbreviation R. appears in captions such as Rex v. Bourne.
5 U.S. (1 Cranch) 137 (1803)Property
…must have superintendence of inferior tribunals and officers, whether judicial or ministerial; from this principle the Court of King's Bench derives the power of issuing writs of mandamus and prohibition. If the Court of King's Bench has the power because it is the supreme court of judicature, shall this court be denied…