Editing Common law (section)

====Statutory construction====

There is a controversial legal maxim in American law that "[[Derogation#Common law|Statutes in derogation of the common law ought to be narrowly construed]]". [[Henry Campbell Black]] once wrote that the canon "no longer has any foundation in reason". It is generally associated with the [[Lochner era]].<ref>{{cite book |last1=Popkin |first1=William |title=Statutes in Court: The History and Theory of Statutory Interpretation |date=1999 |publisher=Duke University Press |page=97}}</ref>

The presumption is that legislatures may take away common law rights, but modern jurisprudence will look for the statutory purpose or legislative intent and apply rules of statutory construction like the [[plain meaning rule]] to reach decisions.<ref name=popkin/> As the United States Supreme Court explained in ''United States v Texas'', 507 U.S. 529 (1993):{{primary inline|date=February 2024}}

{{blockquote |text=Just as longstanding is the principle that "[s]tatutes which invade the common law ... are to be read with a presumption favoring the retention of long-established and familiar principles, except when a statutory purpose to the contrary is evident. ''Isbrandtsen Co. v. Johnson'', 343 U.S. 779, 783 (1952); ''Astoria Federal Savings & Loan Assn. v. Solimino'', 501 U.S. 104, 108 (1991). In such cases, Congress does not write upon a clean slate. ''Astoria'', 501 U.S. at 108. In order to abrogate a common-law principle, the statute must "speak directly" to the question addressed by the common law. ''Mobil Oil Corp. v. Higginbotham'', 436 U. S. 618, 625 (1978); ''Milwaukee v. Illinois'', 451 U. S. 304, 315 (1981).}}

As another example, the [[Supreme Court of the United States]] in 1877,<ref>''Meister v. Moore'', 96 U.S. 76 (1877) ("No doubt a statute may take away a common law right, but there is always a presumption that the legislature has no such intention unless it be plainly expressed.")</ref> held that a [[Michigan]] statute that established rules for [[solemnization]] of marriages did not abolish pre-existing [[common-law marriage]], because the statute did not affirmatively require statutory solemnization and was silent as to preexisting common law.

Court decisions that analyze, interpret and determine the fine boundaries and distinctions in law promulgated by other bodies are sometimes called "interstitial common law", which includes judicial interpretation of fundamental laws, such as the [[US Constitution]], of legislative statutes, and of [[Regulation (law)|agency regulations]], and the application of law to specific facts.<ref>{{Cite web |title=Common Law |work=Atlas of Public Management |url=https://www.atlas101.ca/pm/concepts/common-law/ |access-date=2024-02-02 |language=en-US}}</ref>