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Precedent

Precedent is a principle or rule established in a legal case that becomes authoritative to a court or other tribunal when deciding subsequent cases with similar legal issues or facts.[1][2][3] The legal doctrine stating that courts should follow precedent is called stare decisis (a Latin phrase with the literal meaning "to stand by things decided").[4]

Not to be confused with Precedence or President.

Common-law legal systems often view precedent as binding or persuasive, while civil law systems do not. Common-law systems aim for similar facts to yield similar and predictable outcomes, and observing precedent when making decisions is the mechanism to achieve that goal. Common-law precedent is a third kind of law, on equal footing with statutory law (that is, statutes and codes enacted by legislative bodies) and subordinate legislation (that is, regulations promulgated by executive branch agencies, in the form of delegated legislation) in UK parlance – or regulatory law (in US parlance).


Case law, in common-law jurisdictions, is the set of decisions of adjudicatory tribunals or other rulings that can be cited as precedent. In most countries, including most European countries, the term is applied to any set of rulings on law, which is guided by previous rulings, for example, previous decisions of a government agency. Essential to the development of case law is the publication and indexing of decisions for use by lawyers, courts, and the general public, in the form of law reports. A precedent is a historical setting example for the future (though at varying levels of authority as discussed throughout this article), some become "leading cases" or "landmark decisions" that are cited especially often.


Generally speaking, a legal precedent may be:


In contrast, civil law systems adhere to a legal positivism, where past decisions do not usually have the precedential, binding effect that they have in common law decision-making; the judicial review practiced by constitutional courts can be regarded as a notable exception.

Dimensions of precedent[edit]

Vertical precedent[edit]

The doctrine of vertical precedent states that each court is bound by the decisions of higher courts in its jurisdictional area or tribunal hierarchy.[4] Generally, a common law court system has trial courts, intermediate appellate courts and a supreme court. Thus, the lower courts are bound to obey precedent established by the appellate court for their jurisdiction, and all supreme court precedent.


The Supreme Court of California's explanation of this principle is that

an explanation of how the outcome of the case might be different on slightly different facts, in an attempt to limit the holding of the majority

planting seeds for a future overruling of the majority opinion

Critical analysis[edit]

Court formulations[edit]

Justice Louis Brandeis, in a heavily footnoted dissent to Burnet v. Coronado Oil & Gas Co., 285 U.S. 393, 405–411 (1932), explained (citations and quotations omitted):

Application[edit]

Development[edit]

Early English common law did not have or require the stare decisis doctrine for a range of legal and technological reasons:

"[I]n interpreting a statute a court should always turn to one cardinal canon before all others. ... [C]ourts must presume that a legislature says in a statute what it means and means in a statute what it says there." Connecticut Nat'l Bank v. Germain, (1992). Indeed, "[w]hen the words of a statute are unambiguous, then, this first canon is also the last: 'judicial inquiry is complete.' "

112 S. Ct. 1146, 1149

"A fundamental rule of statutory construction requires that every part of a statute be presumed to have some effect, and not be treated as meaningless unless absolutely necessary." Raven Coal Corp. v. Absher, , 149 S.E. 541 (1929).

153 Va. 332

"In assessing statutory language, unless words have acquired a peculiar meaning, by virtue of statutory definition or judicial construction, they are to be construed in accordance with their common usage." Muller v. BP Exploration (Alaska) Inc., , 787–88 (Alaska 1996).

923 P.2d 783

Quotations related to Precedent at Wikiquote

The dictionary definition of precedent at Wiktionary