Statutory Interpretation
Courts use established approaches to resolve ambiguity in legislation.
The Main Approaches
Literal rule
- Give words their ordinary, plain meaning even if the result seems absurd.
- Whiteley v Chappell (1868) — impersonating a dead person was not an offence under a statute referencing persons 'entitled to vote' because a dead person is not so entitled.
Golden rule
- Modify the literal meaning to avoid an absurd or repugnant result.
- R v Allen (1872) — 'marry' in the Offences Against the Person Act 1861 s.57 read as 'go through a ceremony of marriage' to avoid the absurdity that legal bigamy is impossible (one cannot marry someone to whom one is already married).
Mischief rule
- Identify the gap in the common law the Act was designed to remedy and interpret to suppress the mischief and advance the remedy (Heydon's Case (1584) 3 Co Rep 7a).
- Foundation of the modern purposive approach.
Purposive approach
- Dominant modern approach: courts ask what Parliament intended to achieve, looking beyond the literal words.
- Applied in, e.g., R v Secretary of State for Health, ex parte Quintavalle [2003] UKHL 13, where the House of Lords construed the Human Fertilisation and Embryology Act 1990 purposively to cover cell nuclear replacement embryos.
Intrinsic Aids
- Long title, preamble, headings, schedules, definition sections (all form part of the Act).
Extrinsic Aids
- Hansard — admissible only where (i) the legislation is ambiguous, obscure or leads to absurdity; (ii) the material relied upon consists of statements by a minister or promoter of the Bill; and (iii) those statements are clear: Pepper v Hart [1993] AC 593 (HL).
- Law Commission reports, explanatory notes, international treaties, previous legislation, and academic texts may also be consulted in appropriate circumstances.
Presumptions
- Against retrospective effect.
- Against ousting the jurisdiction of the courts.
- Crown not bound unless expressly or by necessary implication stated.
- Statutes do not alter the common law unless clear and express words are used.
- Against criminal liability without mens rea.
Human Rights Act 1998
- s.3 HRA 1998: Courts must read and give effect to primary and subordinate legislation compatibly with Convention rights 'so far as it is possible to do so'. This is a strong interpretive obligation going beyond ordinary rules: Ghaidan v Godin-Mendoza [2004] UKHL 30.
- s.4 HRA 1998: Where a court cannot read legislation compatibly with Convention rights under s.3, certain courts (listed in s.4(5)) may issue a declaration of incompatibility. Such a declaration does not affect the validity, continuing operation or enforcement of the legislation, and does not bind the parties: s.4(6) HRA 1998.
Common Traps
- Pepper v Hart is not a general licence to consult Hansard — all three gateway conditions must be satisfied.
- s.3 HRA 1998 is a very strong interpretive obligation but does not allow courts to act as legislators; they may read words in or down only where the result is compatible with the underlying thrust of the legislation: Ghaidan v Godin-Mendoza [2004] UKHL 30.
- The purposive approach, not the mischief rule, is the dominant modern method; the mischief rule is historically significant but rarely applied in isolation today.
Exam tip: Identify which rule/approach is being applied before considering the result; examiners often describe facts that map precisely onto one approach. Always check whether HRA 1998 s.3 is engaged before reaching s.4.