LAWS8001 Chap.1 Sources of Law and Legal Research
Sources of Law and Legal Research
Legal research starts by identifying the proposition that must be established and the institution capable of establishing it. Common law, equity and statute are not interchangeable labels. Legislation supplies enacted words, while judgments interpret, apply and sometimes develop law through reasons.
Secondary materials can explain a field and lead to primary authority, but their usefulness does not convert them into binding law.
Authority depends on jurisdiction, hierarchy, date, issue and the role of the passage relied on. A database headnote, search snippet or commentary may point toward a useful decision, yet the judgment must be read to identify majority reasoning and the proposition actually decided.
Legislation must be checked for commencement, amendment and definitions. A research log records searches, exclusions, citations and later history so the analysis can be reproduced.
The chapter's controlling habit is to write the legal role of every source beside it. That small step exposes a missing jurisdiction, an overbroad proposition or a secondary source being asked to do primary work.
What this chapter covers
- 01
Common law, equity and statute
- 02
Primary and secondary sources
- 03
Jurisdiction and hierarchy
- 04
Database search design
- 05
Currency and later treatment
- 06
AGLC4 research records
Worked example · free
Build an authority trail for a statutory power
- 1Frame the legal issue and jurisdiction.
- 1Locate the current Act and definitions.
- 2Find and validate interpreting decisions.
- 1Use commentary only as a route or explanation.
- 1Record later history and unresolved uncertainty.
Key terms
- Primary source
- Legislation or a judicial decision used as a direct source of legal authority.
- Secondary source
- Material that explains, organises or critiques primary law.
- Jurisdiction
- The legal territory and institutional system within which authority operates.
- Citator
- A research tool that records later treatment and links between legal authorities.
- Search trail
- A reproducible record of terms, databases, filters and validation steps.
Sources of Law and Legal Research FAQ
Why can I not rely only on a case headnote?
A headnote is a research aid rather than the court's reasons. Read the judgment to identify the issue, material facts, majority reasoning and ratio. The headnote may compress or characterise the decision in a way that is useful for navigation but insufficient for precise legal analysis.
When should I use a secondary source?
Use commentary to learn terminology, find leading authority, compare interpretations and understand debate. Then verify legal propositions against the relevant legislation or judgment. State the secondary source's explanatory role instead of allowing it to stand silently in place of primary authority.
How do I check whether authority is current?
Confirm the legislation's version and commencement, then use a citator and later cases to inspect treatment of judicial authority. Read the later source rather than relying on a signal alone. Record amendments, appeals, following, distinction, criticism or overruling that affects the proposition used.
What makes a legal search focused?
A focused search converts the narrative into jurisdiction, actor, conduct, consequence, legal concept and time. It searches controlling legislation and defined terms before expanding to cases and commentary. Excluded results are recorded so the final research boundary can be explained rather than guessed.
When should I stop researching?
Stop when controlling current authority answers the defined issue, later searches produce no material change and you have checked adverse as well as supportive sources. Record the databases, terms, dates and citation trails used. A stopping rule makes the research auditable without pretending that every possible source was found.
How do secondary sources help without replacing authority?
Use reliable commentary to learn vocabulary, locate primary materials and understand competing interpretations. Then read and cite the legislation and cases that support the legal proposition. Preserve secondary analysis where it contributes a distinct argument, but do not use it to conceal that primary authority was unavailable or unchecked.
Exam move
Create a two-column research notebook. Put the proposed legal sentence on the left and the authority that can support it on the right. Add jurisdiction, court or provision, date, status and a short note on scope. If the right column contains only a blog, headnote or snippet, continue to the primary source before writing.
Practise with one unfamiliar problem each week.
Turn the facts into a narrow research question, list alternative terms, locate legislation, find one interpreting decision and check later treatment. Save the path, not merely the result. Repeat the exercise with a deliberately misleading search result so you learn to detect source-role errors.
Before submitting an answer, perform a proposition audit.
Read each sentence containing a legal claim and ask whether the cited source establishes that exact claim. Narrow sentences that exceed their support. Confirm that quoted words come from the court or provision rather than a party, headnote or commentary. Finish by checking AGLC4 form against the type of source actually cited.
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