Unit I — Nature of Jurisprudence & Schools

“Jurisprudence is the knowledge of things divine and human, the science of the just and the unjust.” — Ulpian

What is Jurisprudence?

Jurisprudence (from juris prudentia — “knowledge of law”) is not a branch of law but the theory and philosophy of law itself: it asks what law is, where it comes from, and what makes it binding — questions every other law subject takes for granted. Salmond defined it as “the science of the first principles of the civil law”; Holland called it “the formal science of positive law.” Its value: it sharpens the lawyer’s reasoning, supplies the grammar (right, duty, ownership, possession, liability) used by every statute, and — as Laski put it — serves as “the eye of law.”

The Five Schools at a Glance

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    ROOT["Schools of Jurisprudence"]:::root
    ROOT --> A["Natural Law<br/>(law = higher morality;<br/>Aquinas, Grotius, Fuller)"]:::leaf
    ROOT --> B["Analytical / Imperative<br/>(law = sovereign's command;<br/>Austin, Hart, Kelsen)"]:::leaf
    ROOT --> C["Historical<br/>(law grows from Volksgeist;<br/>Savigny, Maine)"]:::leaf
    ROOT --> D["Sociological<br/>(law = social engineering;<br/>Pound, Ihering, Duguit)"]:::leaf
    ROOT --> E["Realist<br/>(law = what courts do;<br/>Holmes, Llewellyn, Frank)"]:::leaf

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Natural Law School

The oldest school: law derives its authority from a higher moral order — divine reason, nature, or human conscience — and an unjust enactment is not truly law (lex injusta non est lex). Its journey runs from the Greeks and Aquinas (eternal, natural, divine and human law) through Grotius (natural law as the basis of international law) to its 20th-century revival after the Nazi era — Fuller’s “inner morality of law” and Radbruch’s formula that intolerably unjust law forfeits validity. In India its imprint is visible in the basic structure doctrine (Kesavananda Bharati v. State of Kerala, 1973) and in due-process reasoning (Maneka Gandhi v. Union of India, 1978).

Austin’s Imperative Theory — and Hart’s Demolition

Austin: “Law is the command of the sovereign backed by a sanction.”

The three pillars: (1) command — an expression of the sovereign’s wish; (2) sovereign — a determinate superior habitually obeyed and obeying no one; (3) sanction — the evil that enforces obedience. Its merit is clarity: it separates law as it is from law as it ought to be.

H.L.A. Hart’s critique (The Concept of Law, 1961) dismantled each pillar:

Hart’s own account: law is the union of primary rules (imposing duties) and secondary rules (of recognition, change and adjudication) — the framework most modern systems actually fit.

Historical School — Savigny’s Volksgeist

Savigny answered the codifiers: law is found, not made — it grows organically from the Volksgeist [the spirit of the people], like language, and legislation can only declare what popular consciousness has already formed. Custom therefore precedes and outranks legislation. Sir Henry Maine gave the school its evolutionary map — societies move “from status to contract” — while criticising Savigny’s mysticism. The school’s weakness: it cannot explain deliberate, transformative legislation (the abolition of sati, the Hindu Code) that led popular consciousness rather than followed it.

Sociological School — Law as Social Engineering

Roscoe Pound treated law as a working institution to be judged by results: the task of the jurist is “social engineering” — maximising the satisfaction of competing interests (individual, public and social) with the least friction and waste. The lawyer must study the law in action, not only the law in the books. Ihering (law as the protection of interests, secured by State coercion) and Duguit (law founded on social solidarity) built the same bridge between law and society. Indian echoes: public interest litigation and Vishaka v. State of Rajasthan (1997), where the court engineered protection the legislature had not yet supplied.

Legal Realism — Law in the Courtroom

The Realists pushed scepticism furthest: “the prophecies of what the courts will do in fact, and nothing more pretentious, are what I mean by the law” (Holmes, The Path of the Law). Llewellyn distinguished paper rules from real rules; Jerome Frank added fact-scepticism — trial outcomes turn on the fallible finding of facts, witnesses and the judge’s own psychology. Realism’s lasting gift is candour about judicial discretion; its excess is reducing law to prediction, which cannot explain why judges feel bound by rules at all.

✏️ Sample — How the Exam Wants the Schools Compared

Question pattern (⭐⭐⭐, asked across 100- and 80-mark papers): “Discuss Austin’s theory of law and examine its criticism” / “Explain the Sociological school.”

The scoring skeleton: open with the school’s one-line creed and its chief jurist; state the doctrine in 3–4 numbered limbs; give the named critics with their exact objections (for Austin: Hart’s four answers above; for Savigny: Maine’s “status to contract” correction); close with the school’s living trace in Indian law (basic structure for natural law; Vishaka for the sociological school). Examiners reward the jurist-quote + critic-by-name pairing far above generalities.

📄 The full bundle (₹199) contains the complete Unit I — every school with PYQ boxes, 16-mark essay blueprints, the Kelsen pure-theory section, the master case/jurist table — plus the Question Bank with full model answers to every Unit I essay asked since 2011. Get Notes + Question Bank — ₹199