The binding force of judicial decisions is anchored in the common law doctrine of spousal stability and judicial bindingness.
1. The Doctrine of Stare Decisis: Article 141
Under the principle of Stare decisis et non quieta movere (to stand by decisions and not disturb settled matters), lower courts must follow the rulings of higher courts.
In India, Article 141 of the Constitution codifies this doctrine, declaring that:
"The law declared by the Supreme Court shall be binding on all courts within the territory of India."
2. Elements of a Judgment
Not every part of a judicial judgment is binding. A judgment is split into:
- Ratio Decidendi (Reason for the Decision): The core legal principle, rationale, or rule of law formulated by the judge to determine the outcome. This is the binding part of the precedent.
- Obiter Dicta (Said by the Way): Casual observations, illustrations, and remarks made by the judge that are not essential to the final decision. These have persuasive value but are not strictly binding.
3. Methods to Determine Ratio Decidendi
- Wambaugh's Test: Invert the legal proposition. If the reversal changes the final decision, the proposition is the ratio; if not, it is obiter.
- Goodhart's Test: Focuses on the material facts and the judge's decision based on those facts to locate the binding principle.