Statutory Interpretation in English Law

Introduction

Statutory interpretation is the process by which courts determine the meaning of legislation. In the UK constitutional system, where Parliament is sovereign and legislation is the primary source of law, the interpretation of statutes is a fundamental judicial function. The courts have developed a range of interpretive approaches — including the literal rule, the golden rule, the mischief rule, and the purposive approach — and have access to certain extrinsic materials, including Hansard, to assist in determining legislative intent.

The Literal Rule

The literal rule requires the court to give the words of a statute their ordinary, grammatical meaning, even if this leads to an absurd or unjust result. The rule reflects the constitutional principle that the court’s role is to apply the law as enacted by Parliament, not to fill gaps or remedy defects.

The Golden Rule

The golden rule is a modification of the literal rule: where the literal meaning leads to an absurd result, the court may adopt an alternative meaning that avoids the absurdity. The golden rule is applied narrowly and does not permit the court to depart from the plain meaning simply because it produces a result that the court considers undesirable.

The Mischief Rule

The mischief rule requires the court to identify the mischief that the statute was intended to remedy and to interpret the statute in a way that suppresses the mischief. The rule originated in Heydon’s Case (1584) and requires the court to consider: what was the common law before the Act; what was the mischief for which the common law did not provide; what remedy Parliament resolved to provide; and the true reason for the remedy.

The Purposive Approach

The purposive approach requires the court to interpret statutes in light of the purpose of the legislation, rather than confining itself to the literal meaning of the words. The purposive approach has become increasingly important, particularly in relation to EU-derived legislation (before and after Brexit) and human rights law.

Pepper v Hart

In Pepper v Hart (1993), the House of Lords held that the court may refer to reports of parliamentary proceedings (Hansard) as an aid to statutory interpretation where: the legislation is ambiguous or obscure; the literal meaning leads to absurdity; and the parliamentary statement relied upon is clear and made by a minister or other promoter of the Bill.