How do courts interpret statutes and what is the effect on law?
the role of statutory interpretation by the courts
A focused VCE Unit 4 answer to statutory interpretation. Covers the purposive approach mandated by Interpretation of Legislation Act 1984 (Vic) s 35, the Acts Interpretation Act 1901 (Cth), intrinsic and extrinsic materials, and leading cases.
Reviewed by: AI editorial process; not yet individually human-reviewed
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What this dot point is asking
VCAA wants you to know how courts give meaning to statutes, the methods they use, and the effect of statutory interpretation on the law. Expect a 5-7 mark medium response, often stimulus-based on a short statutory extract.
The answer
Why statutory interpretation is needed
Parliament drafts statutes in general terms. Specific facts of a case may not be foreseen. Courts must read the statute to apply it to the case before them. The interpretation chosen becomes a precedent.
Reasons interpretation is required include:
- ambiguity in the words;
- general terms that need application to specific facts ("vehicle", "premises");
- changes in technology or society that the legislature did not anticipate;
- inconsistencies between provisions;
- silence on a relevant matter.
The purposive approach
In Victoria, the Interpretation of Legislation Act 1984 (Vic) s 35(a) requires the court to prefer:
a construction that would promote the purpose or object underlying the Act (whether or not that purpose or object is expressly stated in the Act) shall be preferred to a construction that would not promote that purpose or object.
The Commonwealth Acts Interpretation Act 1901 (Cth) s 15AA contains an equivalent provision.
The purposive approach overrides the older "literal rule" wherever there is ambiguity. Where the words are clear and unambiguous, the literal meaning still controls (Project Blue Sky Inc v Australian Broadcasting Authority (1998) 194 CLR 355).
Intrinsic and extrinsic materials
Intrinsic materials (within the Act itself) that the court may use:
- the long title and headings;
- the definitions section;
- the structure of the Act and its parts and divisions;
- other provisions of the Act.
Extrinsic materials (outside the Act) that the court may use under the Interpretation of Legislation Act 1984 (Vic) s 35(b) and the Acts Interpretation Act 1901 (Cth) s 15AB:
- the explanatory memorandum;
- the second reading speech;
- parliamentary committee reports;
- law reform commission reports;
- the international treaty the Act implements (where applicable);
- the common law context in which the Act was passed.
The Acts Interpretation Act 1901 (Cth) s 15AB permits extrinsic materials where the provision is ambiguous, the literal meaning is absurd, or confirmation of the literal meaning is needed.
Approaches and rules
- Purposive approach
- The dominant modern approach. Identify the purpose; choose the interpretation that promotes it.
- Literal rule
- The natural and ordinary meaning of the words is used. Subordinate to purposive interpretation.
- Golden rule
- Where the literal meaning produces an absurdity, the court may depart slightly to avoid it.
- Mischief rule
- Identifies the "mischief" the Act was passed to correct (from Heydon's Case (1584) 76 ER 637), now largely subsumed within the purposive approach.
- Noscitur a sociis ("a word is known by the company it keeps")
- A word is interpreted in the light of accompanying words.
- Ejusdem generis ("of the same kind")
- Where general words follow specific words, they are interpreted as limited to the same class.
- Expressio unius est exclusio alterius
- The express mention of one thing implies the exclusion of others.
Examples
The Project Blue Sky case (Project Blue Sky Inc v Australian Broadcasting Authority (1998) 194 CLR 355). The High Court interpreted the Broadcasting Services Act 1992 (Cth) and reaffirmed that statutory interpretation begins with the text and context, with purpose informing the choice between candidate meanings.
Re Wakim; Ex parte McNally (1999) 198 CLR 511. The High Court held that the Federal Court could not exercise cross-vested state jurisdiction, requiring close attention to the constitutional and statutory text.
CIC Insurance Ltd v Bankstown Football Club Ltd (1997) 187 CLR 384. Approved the purposive approach and confirmed extrinsic materials may be used where the statute is ambiguous.
Effect of statutory interpretation
Once a court interprets a statute, that interpretation becomes a precedent binding on lower courts in the hierarchy. Parliament can then accept the interpretation (do nothing), codify it (insert express words confirming it), or reverse it (amend the statute to displace it).
The dialogue between parliament and the courts is constant. Parliament constantly amends statutes in response to judicial interpretations it considers unsatisfactory.
Exam-style practice questions
Practice questions written in the style of VCAA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
2023 VCAA3 marksExplain one effect that statutory interpretation by courts can have on legislation.Show worked answer →
A 3-mark explain response needs one clearly identified effect, a sentence of explanation, and a brief example or consequence.
Effect: the meaning of the words is clarified and the scope of the Act is broadened or narrowed. When a court interprets the words of a statute to apply it to the case before it, the meaning it gives the words becomes binding through the doctrine of precedent and is read together with the Act.
Explanation. Because the interpretation settles what disputed words mean, it can expand the Act to cover situations parliament may not have expressly foreseen, or restrict it by reading the words narrowly. Later courts and parties must then apply the statute as interpreted.
Example or consequence. For instance, interpreting a broad word like 'weapon' or 'vehicle' decides whether particular conduct is caught by the Act, so the legislation may apply more widely or more narrowly than the bare words first suggested. Parliament can later codify or abrogate the interpretation if it disagrees.
Markers reward one precise effect (such as clarifying meaning, or broadening or narrowing the law), an explanation of how it occurs through precedent, and an example or consequence.
