Law reportLaw reports or reporters are series of books that contain judicial opinions from a selection of case law decided by courts. When a particular judicial opinion is referenced, the law report series in which the opinion is printed will determine the case citation format. Historically, the term reporter was used to refer to the individual persons who actually compile, edit, and publish such opinions. For example, the Reporter of Decisions of the Supreme Court of the United States is the person authorized to publish the Court's cases in the bound volumes of the United States Reports.
EstoppelEstoppel is a judicial device in common law legal systems whereby a court may prevent or "estop" a person from making assertions or from going back on his or her word; the person being sanctioned is "estopped". Estoppel may prevent someone from bringing a particular claim. Legal doctrines of estoppel are based in both common law and equity. It is also a concept in international law. There are many different types of estoppel which can arise, but the common thread between them is that a person is restrained from asserting a particular position in law where it would be inequitable to do so.
CertiorariIn law, certiorari is a court process to seek judicial review of a decision of a lower court or government agency. Certiorari comes from the name of an English prerogative writ, issued by a superior court to direct that the record of the lower court be sent to the superior court for review. The term is Latin for "to be made certain", and comes from the opening line of such writs, which traditionally began with the Latin words "Certiorari volumus..." ("We wish to be made certain...").
StatuteA statute is a formal written enactment of a legislative authority that governs the legal entities of a city, state, or country by way of consent. Typically, statutes command or prohibit something, or declare policy. Statutes are rules made by legislative bodies; they are distinguished from case law or precedent, which is decided by courts, and regulations issued by government agencies. In virtually all countries, newly enacted statutes are published and distributed so that everyone can look up the statutory law.
Legal positivismLegal positivism (as understood in the Anglosphere) is a school of thought of analytical jurisprudence developed largely by legal philosophers during the 18th and 19th centuries, such as Jeremy Bentham and John Austin. While Bentham and Austin developed legal positivist theory, empiricism provided the theoretical basis for such developments to occur. The most prominent legal positivist writer in English has been H. L. A.
Legal opinionIn law, a legal opinion is in certain jurisdictions a written explanation by a judge or group of judges that accompanies an order or ruling in a case, laying out the rationale and legal principles for the ruling. Opinions are in those jurisdictions usually published at the direction of the court, and to the extent, they contain pronouncements about what the law is and how it should be interpreted, they reinforce, change, establish, or overturn legal precedent.
Ultra viresUltra vires ('beyond the powers') is a Latin phrase used in law to describe an act which requires legal authority but is done without it. Its opposite, an act done under proper authority, is intra vires ('within the powers'). Acts that are intra vires may equivalently be termed "valid", and those that are ultra vires termed "invalid". Legal issues relating to ultra vires can arise in a variety of contexts: Companies and other legal persons sometimes have limited legal capacity to act, and attempts to engage in activities beyond their legal capacities may be ultra vires.
InjunctionAn injunction is an equitable remedy in the form of a special court order that compels a party to do or refrain from specific acts. "When a court employs the extraordinary remedy of injunction, it directs the conduct of a party, and does so with the backing of its full coercive powers." A party that fails to comply with an injunction faces criminal or civil penalties, including possible monetary sanctions and even imprisonment. They can also be charged with contempt of court.
Case citationCase citation is a system used by legal professionals to identify past court case decisions, either in series of books called reporters or law reports, or in a neutral style that identifies a decision regardless of where it is reported. Case citations are formatted differently in different jurisdictions, but generally contain the same key information. A legal citation is a "reference to a legal precedent or authority, such as a case, statute, or treatise, that either substantiates or contradicts a given position.
WestlawWestlaw is an online legal research service and proprietary database for lawyers and legal professionals available in over 60 countries. Information resources on Westlaw include more than 40,000 databases of case law, state and federal statutes, administrative codes, newspaper and magazine articles, public records, law journals, law reviews, treatises, legal forms and other information resources. Most legal documents on Westlaw are indexed to the West Key Number System, which is West's master classification system of U.
