6.5 Secondary Sources as Finding Tools
Key Takeaways
- Secondary sources explain and locate the law; they are never mandatory authority, so a research answer that stops at Am. Jur. 2d is unfinished.
- American Jurisprudence 2d and Corpus Juris Secundum are national legal encyclopedias for orientation; A.L.R. annotations collect and split cases by jurisdiction on one narrow issue.
- A Restatement section is persuasive until a court in the jurisdiction adopts it, at which point the adopting opinion — not the Restatement — is the primary authority you cite.
- Law reviews, bar journals, and looseleaf services are reached through periodical indexes such as the Index to Legal Periodicals, LegalTrac, and HeinOnline rather than by browsing.
- Use the secondary source to harvest citations, then read, update, and cite the statute, regulation, or opinion it points to.
Section 6.1 drew the primary/secondary line. This section does the part the blueprint separately names — Secondary Sources and Law review and journal databases — as a finding-tool skill. The Paralegal CORE Competency Exam (PCCE) does not ask you to critique a treatise. It asks which book or database a paralegal reaches for first, and whether the thing you found can be cited to a court.
One rule governs everything below. A secondary source is never mandatory authority. It can be extremely persuasive, and a court may quote it, but a brief that cites Corpus Juris Secundum (C.J.S.) for the elements of negligence when the state supreme court has stated those elements is a brief with a hole in it. Secondary sources are how you get to the primary law quickly and how you avoid missing an issue. They are the on-ramp, not the destination.
Why a paralegal starts here
You are handed a file in an area you have never touched — a mechanic's lien on a commercial build-out, a grandparent-visitation petition, a UCC Article 2 warranty dispute. Running a full-text search first means guessing at the vocabulary, and the vocabulary is exactly what you do not have. A secondary source gives you four things a raw search will not:
- The terms of art, so your later query uses the words courts actually use
- The structure of the doctrine — elements, defenses, exceptions — so you know what you are looking for
- Citations to primary law, already gathered in footnotes
- A sense of whether your jurisdiction is majority or minority on the point
The finding-tool ladder
Legal encyclopedias
American Jurisprudence, Second Edition (Am. Jur. 2d) and Corpus Juris Secundum (C.J.S.) are national encyclopedias arranged alphabetically by topic, with a general index and a table of contents. They are broad and shallow: a paragraph of black-letter statement with footnotes to representative cases. Many states also have a state encyclopedia (for example, Texas Jurisprudence or New York Jurisprudence), which is far more useful when the question is state-specific.
Use an encyclopedia for orientation. Do not use it to resolve a close question, and do not assume its statement reflects your state's rule.
A.L.R. annotations
American Law Reports (A.L.R.) is different in kind. Each annotation takes one narrow issue and collects the cases nationwide, grouped by outcome and jurisdiction — "liability of landlord for criminal acts of third persons," for example. The annotation tells you which courts have split and how.
A.L.R. is the best tool on the shelf when the question is narrow and you need to know how other jurisdictions came out. Check the currency: annotations are supplemented, and a superseded annotation will say so. Federal issues live in A.L.R. Fed.
Restatements of the Law
The American Law Institute (ALI) publishes Restatements — Contracts (Second), Torts (Second and Third), Property, Agency, Trusts, and more. A Restatement section states a rule, then adds Comments and Illustrations, and the accompanying Reporter's Notes cite the cases.
The tested nuance: a Restatement is a secondary source until a court in the jurisdiction adopts the section. Once the state supreme court says "we adopt Restatement (Second) of Torts § 402A," the binding authority is that opinion. Cite the case; cite the Restatement alongside it if you like. Never cite the Restatement instead of the adopting case in that jurisdiction.
Treatises and hornbooks
A treatise is the deep single-subject work — multi-volume, updated by pocket part or looseleaf supplement, written by a recognized authority. Wright & Miller on federal practice, Collier on bankruptcy, Corbin and Williston on contracts, Nimmer on copyright. A hornbook is the one-volume student-facing version.
Treatises are the strongest secondary authority and the one most likely to be quoted approvingly by a court. Check the supplement, not just the bound volume — that is where the last four years live.
Legal periodicals and their indexes
Law reviews and journals are student-edited (mostly) academic articles. Bar journals and practice magazines are shorter and more practical. Both are useful when the issue is new, unsettled, or reform-driven — a novel statute, an emerging technology, a circuit split nobody has resolved.
The blueprint names law review and journal databases specifically, because you find articles through an index rather than by browsing:
| Tool | What it is |
|---|---|
| Index to Legal Periodicals & Books (ILP) | Long-running subject/author index to legal periodicals |
| LegalTrac / Current Law Index | Indexes legal periodicals, bar journals, and legal newspapers |
| HeinOnline | Image-based full-run PDF archive of law reviews back to volume 1 |
| Westlaw / Lexis journal databases | Full-text searchable, generally with shorter historical coverage than HeinOnline |
| SSRN / institutional repositories | Free preprints and working papers |
A student note is persuasive at best. Its footnotes, however, are often the fastest inventory of primary authority on a new question that exists anywhere.
Looseleaf services
A looseleaf service (CCH, BNA/Bloomberg Law, RIA) combines statutes, regulations, agency material, cases, and editorial explanation for one regulated field — tax, labor, environmental, securities. Pages are replaced as the law changes, which is why heavily regulated practices live in them. If a client question is "what does the agency currently require," a looseleaf beats an encyclopedia every time.
Practice guides, form books, and dictionaries
Practice guides and form books give jurisdiction-specific procedure and model documents with drafting notes. Section 7.3 covers the ethical limit: a form is a starting point, never advice.
Black's Law Dictionary defines terms. Words and Phrases does something different and more powerful — it collects judicial definitions, so you can see how courts in your jurisdiction have construed "resident," "occurrence," or "employee."
The workflow the exam rewards
- Enter through a secondary source appropriate to the question's breadth (encyclopedia for broad, A.L.R. for narrow, treatise for deep, looseleaf for regulated).
- Harvest the citations from the footnotes.
- Read the primary authority yourself. The footnote's characterization is not the holding.
- Update with Shepard's or KeyCite (Section 6.2).
- Cite the primary source. Add the secondary source only as support, and only if it helps.
Traps the PCCE plants
- Calling a Restatement, treatise, or A.L.R. annotation binding — it is not, in any jurisdiction, on its own.
- Choosing an encyclopedia when the stem describes a narrow, split issue (that is A.L.R.) or a regulated agency question (that is a looseleaf).
- Skipping the pocket part or supplement and reporting a rule that changed six years ago.
- Citing a student note to a trial judge as if it settled the question.
- Forgetting that once the jurisdiction adopts a Restatement section, the adopting opinion is the citation.
A supervising attorney asks whether other states allow a landlord to be held liable for a tenant's injury from a third party's criminal act, and how the jurisdictions have split. Which secondary source is the most efficient starting point?
A state supreme court opinion states, "We adopt Restatement (Second) of Torts § 402A." A paralegal is assembling authority for a brief in that state. What should be cited as the binding authority for the rule?
Which statement about legal periodicals and their databases is accurate for PCCE purposes?