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Statutory interpretation

Statutory interpretation is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Statutory interpretation rather than just read about it. In short: Statutory interpretation is the process by which courts interpret and apply legislation. Some amount of interpretation is often necessary when a case involves a statute.

Key takeaways

  • Statutory interpretation belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Statutory interpretation to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Statutory interpretation from memory before moving on to harder problems.

Reference excerpt

Statutory interpretation is the process by which courts interpret and apply legislation. Some amount of interpretation is often necessary when a case involves a statute. Sometimes the words of a statute have a plain and a straightforward meaning, but in many cases, there is some ambiguity in the words of the statute that must be resolved by the judge. To find the meanings of statutes, judges use various tools and methods of statutory interpretation, including traditional canons of statutory interpretation, legislative history, and purpose. In common law jurisdictions, the judiciary may apply rules of statutory interpretation both to legislation enacted by the legislature and to delegated legislation such as administrative agency regulations.

History Statutory interpretation first became significant in common law systems, of which historically England is the exemplar. In Roman and civil law, a statute (or code) guides the magistrate, but there is no judicial precedent. In England, Parliament historically failed to enact a comprehensive code of legislation, which is why it was left to the courts to develop the common law; and having decided a case and given reasons for the decision, the decision would become binding on later courts. Accordingly, a particular interpretation of a statute would also become binding, and it became necessary to introduce a consistent framework for statutory interpretation. In the construction (interpretation) of statutes, the principal aim of the court must be to carry out the "intention of Parliament", and the English courts developed three main rules (plus some minor ones) to assist them in the task. These were: the mischief rule, the literal rule, and the golden rule. Statutes may be presumed to incorporate certain components, as Parliament is "presumed" to have intended their inclusion. For example:

Offences defined in criminal statutes are presumed to require mens rea (a guilty intention by the accused): Sweet v Parsley. A statute is presumed to make no changes in the common law. A statute is presumed not to remove an individual's liberty, vested rights, or property. A statute is presumed not to apply to the Crown. A statute is presumed not to empower a person to commit a criminal offence. A statute is presumed not to apply retrospectively (whereas the common law is "declaratory": Shaw v DPP). A statute is to be interpreted so as to uphold international treaties to which the UK is a party. In the case of EU law, any statutory provision which contravenes the principle embodied in the EU treaties that EU law is supreme is effectively void: Factortame. It is presumed that a statute will be interpreted ejusdem generis ("of the same kind"), so that words are to be construed in sympathy with their immediate context. Where legislation and case law are in conflict, there is a presumption that legislation takes precedence insofar as there is any inconsistency. In the United Kingdom this principle is known as parliamentary sovereignty; but while Parliament has exclusive competence to legislate, the courts (mindful of their historic role of having developed the entire system of common law) retain sole competence to interpret statutes.

General principles The age old process of application of the enacted law has led to the formulation of certain rules of interpretation. According to Cross, "Interpretation is the process by which the courts determine the meaning of a statutory provision for the purpose of applying it to the situation before them", while Salmond calls it "the process by which the courts seek to ascertain the meaning of the legislature through the medium of authoritative forms in which it is expressed". Interpretation of a particular statute depends upon the degree of creativity applied by the judges or the court in the reading of it, employed to achieve some stated end. It is often mentioned that common law statutes can be interpreted by using the Golden Rule, the Mischief Rule or the Literal Rule. However, according to Francis Bennion, author of texts on statutory interpretation, there are no such simple devices to elucidate complex statutes, "[i]nstead there are a thousand and one interpretative criteria".

Intention of the legislature A statute is an edict of a legislature, and the conventional way of interpreting a statute is to seek the "intention" of its maker of framer. It is the judicature's duty to act upon the true intention of the legislature or the mens or sentential legis. The courts have to objectively determine the interpretation with guidance furnished by the accepted principles. If a statutory provision is open to more than one interpretation the court has to choose that interpretation which represents the true intention of the legislature. The function of the courts is only to expound and not to legislate.

Conflict of laws within a federation

Federal jurisdictions may presume that either federal or local government authority prevails in the absence of a defined rule. In Canada, there are areas of law where provincial governments and the federal government have concurrent jurisdiction. In these cases the federal law is held to be paramount. However, in areas where the Canadian constitution is silent, the federal government does not necessarily have superior jurisdiction. Rather, an area of law that is not expressly mentioned in Canada's Constitution will have to be interpreted to fall under either the federal residual jurisdiction found in the preamble of s. 91—known as the Peace, Order and Good Government clause—or the provinces residual jurisdiction of "Property and Civil Rights" under s. 92(13A) of the 1867 Constitution Act. This contrasts with other federal jurisdictions, notably the United States and Australia, where it is presumed that if legislation is not enacted pursuant to a specific provision of the federal Constitution, the states will have authority over the relevant matter in their respective jurisdictions, unless the state's definitions of their statutes conflicts with federally established or recognized rights

United States

Meaning

The judiciary interprets how legislation should apply in a particular case as no legislation unambiguously and specifically addresses all matters. Legislation may contain uncertainties for a variety of reasons:

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Statutory interpretation

Start with the simplest possible case. Write down what Statutory interpretation claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Statutory interpretation before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Statutory interpretation ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Statutory interpretation

In research
Statutory interpretation appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Statutory interpretation in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Statutory interpretation is common in secondary-school and first-year university syllabi. It links to neighbouring topics Legal interpretation, Legal reasoning, Sources of law, so understanding it makes those chapters shorter.
In everyday life
Look for Statutory interpretation outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Statutory interpretation in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Statutory interpretation means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Statutory interpretation out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Statutory interpretation in simple terms?

Statutory interpretation is the process by which courts interpret and apply legislation. Some amount of interpretation is often necessary when a case involves a statute.

Why does Statutory interpretation matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Statutory interpretation?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Statutory interpretation.

Tags

  • Legal interpretation
  • Legal reasoning
  • Sources of law
  • Statutory law

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