Introduction
When Parliament passes legislation, it uses words to create laws. However, the meaning of these words can be unclear or lead to unexpected outcomes when applied to specific factual scenarios. It is the constitutional role of the judiciary to interpret these statutes and apply them to the cases before them. To do this, judges have developed various rules and approaches to statutory interpretation. Among the most prominent are the literal rule and the purposive approach. These two methods represent fundamentally different judicial philosophies. This essay will assess the advantages and disadvantages of each. It will argue that while the literal rule offers the benefit of legal certainty and respects parliamentary supremacy, its rigidity often creates absurdity and injustice. Conversely, the purposive approach provides a more flexible and just method for achieving Parliament’s true intent, though it is not without its own drawbacks, particularly concerning the potential for judicial law-making.
The Literal Rule: Certainty at the Cost of Justice?
The literal rule is the foundational principle of statutory interpretation. It dictates that judges should give words their plain, ordinary, and literal meaning, as they would appear in a dictionary. The judge's task is not to question the wisdom of Parliament but simply to apply the words as enacted, even if the result appears harsh or absurd. This approach is underpinned by a deep respect for the doctrine of parliamentary sovereignty, which holds that Parliament is the supreme law-making body and the role of the judiciary is to apply, not create, law.
The primary advantage of the literal rule is that it promotes legal certainty. If words are given their everyday meaning, the law should be clear and predictable. This allows lawyers to advise their clients with a degree of confidence about how a statute will be interpreted in court. It also provides consistency, as different judges applying the same rule to the same words should reach the same conclusion. Furthermore, by restricting judges to the text of the statute, the literal rule respects the separation of powers. As Lord Esher stated in R v Judge of the City of London Court (1892), "if the words of an Act are clear, you must follow them, even though they lead to a manifest absurdity." This view suggests that it is Parliament's job to make the law and, if necessary, to correct any absurdities through new legislation, not for judges to rewrite statutes in the courtroom.
However, the disadvantages of the literal rule are significant and have been widely criticised. The most compelling criticism is that it can lead to results that are manifestly absurd and unjust, and which Parliament could not possibly have intended. A classic example is the case of Whitely v Chappell (1868), where the defendant was charged with impersonating "any person entitled to vote" at an election. He had impersonated a man who had died. The court, applying the literal rule, found him not guilty because a dead person is not entitled to vote. While grammatically correct, this decision clearly undermined the purpose of the legislation, which was to prevent electoral fraud.
Similarly, the literal rule can produce harsh outcomes. In London and North Eastern Railway Co v Berriman (1946), a railway worker was killed while oiling the track. His widow tried to claim compensation under a statute that required a lookout to be provided for men working on or near the railway line for the purposes of "relaying or repairing" it. The court held that oiling the track did not fall under the literal meaning of "relaying or repairing," and therefore the widow's claim failed. This decision, though a correct application of the literal rule, was widely seen as unfair and contrary to the spirit of a law designed to protect workers. The case of Fisher v Bell (1961) further illustrates the rule's flaws. A shopkeeper who displayed a flick knife in his window was found not guilty of "offering for sale" an offensive weapon, because in contract law, the display was an "invitation to treat," not an "offer for sale." This created a loophole that frustrated the clear legislative intention to restrict the availability of such weapons. These cases demonstrate that the literal rule's rigidity can defeat the purpose of the law itself.
The Purposive Approach: A Quest for Legislative Intent
In contrast to the literal rule, the purposive approach requires the court to look beyond the mere words of a statute and to consider its underlying purpose. The judge's task is to identify the 'mischief' or problem that Parliament was seeking to remedy with the legislation and to interpret the words in a way that gives effect to that purpose. This approach has its origins in the old 'mischief rule' from Heydon's Case (1584), but it has evolved into a more modern and flexible tool, particularly under the influence of European law and the Human Rights Act 1998.
The main advantage of the purposive approach is its ability to deliver justice and avoid the absurdities associated with the literal rule. It allows judges to 'fill in the gaps' left by Parliament and deal with unforeseen circumstances in a way that aligns with the legislative intent. A powerful example is R v Registrar-General, ex parte Smith (1990). The applicant, who had been convicted of two murders, sought access to his birth certificate under the Adoption Act 1976, which gave an adopted person the right to this information. Literally, he was entitled to it. However, he had expressed a desire to harm his birth mother. The court used a purposive approach, holding that the purpose of the Act was to connect families, not to facilitate serious crime. They therefore denied his application, preventing a potentially dangerous outcome that a literal interpretation would have permitted.
The purposive approach also allows the law to function effectively in a modern context. The interpretation of European Union law, when the UK was a member, required domestic courts to use a purposive approach. Similarly, section 3 of the Human Rights Act 1998 explicitly requires courts to read and give effect to legislation "in a way which is compatible with the Convention rights," a task which inherently requires a purposive interpretation. The landmark case of Pepper v Hart (1993) also moved the law in this direction by allowing courts, in limited circumstances, to consult parliamentary debates recorded in Hansard to ascertain the meaning of ambiguous legislation. This allows judges to understand the context and purpose behind the words chosen by Parliament.
Despite these advantages, the purposive approach is not without its critics. The most serious charge is that it encourages judicial law-making, thereby undermining parliamentary sovereignty. By looking for a 'purpose' that may not be immediately obvious from the text, judges may be accused of imposing their own views on what the law should be, rather than what Parliament has enacted. This concern was forcefully expressed by Lord Simonds in Magor and St Mellons RDC v Newport Corporation (1952), where he described the purposive approach as a "naked usurpation of the legislative function" that was "not to be tolerated." There is a real danger that unelected judges could overstep their constitutional role and begin to legislate from the bench. Another disadvantage is the potential for uncertainty. If the outcome of a case depends on a judge's perception of Parliament's purpose, it becomes harder for lawyers to predict the law and advise their clients. Finding the 'purpose' of a statute can itself be a difficult and subjective exercise, leading to inconsistency in judicial decisions.
Conclusion
In conclusion, both the literal rule and the purposive approach have distinct advantages and disadvantages. The literal rule offers a clear, certain, and constitutionally deferential method of interpretation, but it does so at the risk of creating outcomes that are absurd, unjust, and contrary to the obvious intent of Parliament. It treats statutes as perfect linguistic constructs, ignoring the reality of legislative drafting and the complexity of modern life.
By contrast, the purposive approach offers a flexible and pragmatic method that seeks to achieve justice and give effect to the spirit of the law. However, this flexibility comes with the significant risk of empowering judges to make law, blurring the lines of the separation of powers and potentially creating legal uncertainty. Ultimately, the choice between them represents a trade-off between certainty and justice. While the literal rule has a role to play where statutory language is perfectly clear, the increasing complexity of legislation suggests that the purposive approach is the more appropriate tool for a modern judiciary. It allows the law to operate sensibly and justly, which is surely the overriding purpose that Parliament itself would intend.
References
Cases
- Fisher v Bell [1961] 1 QB 394
- Heydon's Case (1584) 76 ER 637
- London and North Eastern Railway Co v Berriman [1946] AC 278
- Magor and St Mellons RDC v Newport Corporation [1952] AC 189
- Pepper v Hart [1993] AC 593
- R v Judge of the City of London Court [1892] 1 QB 273
- R v Registrar-General, ex parte Smith [1990] 2 QB 253
- Whitely v Chappell (1868) LR 4 QB 147
Legislation
- Adoption Act 1976
- Human Rights Act 1998
