Jurisprudence

Legal formalism, also known as conceptualism, treats law like a math or science. Formalists believe that in the same way a mathematician or scientist identifies the relevant axioms, applies them to given data, and systematically reaches a demonstrable theorem, a judge identifies the relevant legal principles, applies them to the facts of a case, and logically deduces a rule that will govern the outcome of a dispute. Judges derive relevant legal principles from various sources of legal authority, including state and federal constitutions, statutes, regulations, and case law.

For example, most states have enacted legislation that prohibits courts from probating a will that was not signed by two witnesses. If a court is presented with a number of wills to probate for the same estate, and only one of those wills has been witnessed by at least two persons, the court can quickly deduce the correct legal conclusion in a formalistic fashion: each will that has been signed by fewer than two witnesses will have no legal effect, and only the will executed in compliance with the statutory requirements may be probated.

Formalists also rely on inductive reasoning to settle legal disputes. Whereas deductive reasoning involves the application of general principles that will yield a specific rule when applied to the facts of a case, inductive reasoning starts with a number of specific rules and infers from them a broader legal principle that may be applied to comparable legal disputes in the future. GRISWOLD V. CONNECTICUT, 381 U.S. 479, 85 S. Ct. 1678, 14 L. Ed. 2d 510 (1965), provides an example. In Griswold, the Supreme Court ruled that although no express provision of the federal Constitution guarantees the right to privacy, and although no precedent had established such a right, an individual's right to privacy can be inferred from the First, Third, Fourth, Fifth, Ninth, and Fourteenth Amendments and the cases interpreting them.

English jurist SIR EDWARD COKE was among the first to popularize the formalistic approach to law in Anglo-American history. Coke believed that the COMMON LAW was "the peculiar science of judges." The common law, Coke said, represented the "artificial perfection of reason" obtained through "long study, observation, and experience." Coke also believed that only lawyers, judges, and others trained in the law could fully comprehend and apply this highest method of reasoning. The rest of society, including the king or queen of England, was not sufficiently learned to do so.

Langdell invigorated Coke's jurisprudence of artificial reason in the United States during the second half of the nineteenth century. Langdell compared the study of law to the study of science, and suggested that law school classrooms were the laboratories of jurisprudence. Judicial reasoning, Langdell believed, parallels the reasoning used in geometric proofs. He urged professors of law to classify and arrange legal principles much as a taxonomist organizes plant and animal life. Langdell articulated what has remained the orthodox school of thought in U.S. jurisprudence throughout the twentieth century.

Since the early 1970s, Professor RONALD M. DWORKIN has been the foremost advocate of the formalist approach with some subtle variations. Although Dworkin stops short of explicitly comparing law to science and math, he maintains that law is best explained as a rational and cohesive system of principles that judges must apply with integrity. The principle of integrity requires that judges provide equal treatment to all litigants presenting legal claims that cannot honestly be distinguished. Application of this principle, Dworkin contends, will produce a "right answer" in all cases, even cases presenting knotty and polemical POLITICAL QUESTIONS.