Definition
Statutory means: of, relating to, created by, defined by, or required by a statute — that is, a law formally enacted by a legislative body. When applied as an adjective to a legal concept, it signals that the concept's existence, scope, or requirements derive from written legislation rather than from common law, judicial decision, equity, or constitutional provision.
The term functions primarily as a modifier. A statutory right is one granted by legislation. A statutory crime is an offense defined by statute rather than inherited from common law. A statutory deadline is one imposed by the text of a law, not by court rule or agreement. In each case, the modifier tells a researcher where to look: to the statute, not to cases developing common law doctrine.
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Common Language
Modern common usage (Wiktionary): "Of, relating to, enacted or regulated by a statute."
Historical common usage (Webster's 1913): "Enacted by statute; depending on statute for its authority; as, a statutory provision."
The common and legal meanings track closely, but the gap worth noting is one of implication. In ordinary usage, "statutory" simply describes the source of a rule. In legal research, it carries a substantive consequence: statutory provisions displace or supplement common law, and the interpretive method that applies — textualism, legislative history analysis, plain-meaning canons — differs from how courts develop judge-made doctrine. Calling something "statutory" is not merely descriptive; it determines the analytical framework.
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Why It Matters in Research
Understanding whether a doctrine, right, or obligation is statutory or common law is often the first question a researcher must answer, because it controls where the authoritative source lives and how courts interpret and modify it.
Several research traps arise with this term:
First, the same concept may be both statutory and common law in overlapping ways. Fraud, for instance, existed as a common law tort before being codified in various statutes (including the Statute of Frauds). Researching only statutory fraud provisions will miss common law fraud doctrine, and vice versa. Historical sources that treat a topic as purely common law may predate statutory codification.
Second, statutory text is jurisdiction-specific. A right or requirement that is statutory in one state may be a common law rule in another, or may not exist at all. The Rapalje & Lawrence entry, partially visible in the source material, gestures toward the Statute of Frauds — a foundational example of a statute that varies materially by jurisdiction in its precise requirements regarding writing, signature, and covered transaction types. Researchers working across jurisdictions cannot assume that "statutory" means the same statute everywhere.
Third, statutory interpretation is a moving target. Courts develop bodies of case law interpreting statutory language, and over time these interpretations can diverge significantly from what the statutory text says on its face. A researcher reading only the statute — or only early case law — may miss significant doctrinal development in either direction.
Fourth, the term "statutory exposition" (noted in Black's 2nd Ed.) is a historical concept worth flagging: when a later enactment implicitly interprets an earlier statute, that later law itself becomes evidence of legislative meaning. This doctrine is largely archaic in modern statutory interpretation but appears in older treatises and judicial opinions and can confuse researchers unfamiliar with the concept.
Finally, note that the encyclopedia entries linked above illustrate how "statutory" functions in specialized legal contexts — statutory rape (a legislatively defined offense with strict liability elements), statutory redemption (a legislatively created right to reclaim property after foreclosure, distinct from the equitable right of redemption), and the statutory framework of a major federal regulatory scheme. These are not the same analytical animal, and tracking the modifier carefully tells the researcher which body of law governs.
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Historical Dictionary Support
Black's Law Dictionary (2nd Ed.) defines statutory as "relating to a statute; created or defined by a statute; required by a statute; conforming to a statute" — a four-part formulation that usefully distinguishes relating to (descriptive connection), created by (source of existence), required by (mandatory obligation), and conforming to (compliance). This remains an accurate and complete account of the term's legal usage.
Black's also cross-references "statutory crime" and "statutory dedication," treating "statutory" as a category marker that points to more specific doctrine elsewhere in the dictionary. The entry on "statutory exposition" — the idea that a later statute can operate as an implicit interpretation of an earlier one — reflects a concept of legislative practice that was more prominently discussed in nineteenth-century jurisprudence than today.
The Rapalje & Lawrence entry visible in the source material does not directly define "statutory" but appears in the context of the Statute of Frauds, illustrating how the term operates in practice: certain categories of contract are unenforceable unless they satisfy statutory requirements (written form, signature). This exemplifies the core function of "statutory" as a modifier — it announces that a rule of law traces to enacted text, with all that implies for how the rule must be proved, interpreted, and applied.
Neither historical source addresses the interpretive implications of the statutory/common law distinction in the way modern legal research demands. Both treat "statutory" as self-explanatory. Researchers should not assume that historical dictionary definitions account for textualism's rise as an interpretive methodology, or for modern debates about the weight of legislative history.
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Jurisdictional Note
Because statutory law is inherently jurisdiction-specific, the term itself provides no substantive content without identifying the relevant legislature. Federal statutory law and state statutory law can govern the same conduct, sometimes concurrently and sometimes in conflict. Researchers must always pair "statutory" with a jurisdiction to conduct meaningful research.
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