4. Identify Judicial Opinions

4.1 Assemble the identity elements

A conventional reported-case reference combines the case name, reporter volume, reporter identifier, first page, and a parenthetical identifying the decision year and any needed court information. Add the pinpoint where a particular passage matters. The exact punctuation and abbreviation choices depend on the receiving instructions.

Citation Code model: [Case name], [volume] [reporter] [first page], [pinpoint] ([court if needed] [year]).

Each element performs work. The first page identifies the report of the decision. The pinpoint identifies the passage. The year helps distinguish decisions and situates the authority in time. Court information matters when the publication identifier does not make the issuing court clear enough for the receiving context.

4.2 Use case metadata without copying database display choices blindly

CourtListener's research record for Ashcroft v. Iqbal includes 556 U.S. 662 and the decision date May 18, 2009. A conventional reference is Ashcroft v. Iqbal, 556 U.S. 662 (2009). That identifies the decision. It does not identify a particular passage or assert that every proposition attributed to the case is correct.

The same record contains parallel identifiers. They identify publications or representations of the decision. Including all of them is not automatically useful. Follow any requirement for a particular reporter or parallel citation; otherwise choose a stable, appropriate identifier and add access information only when it helps the reader.

Do not substitute a database cluster ID for a legal reporter citation. Keep the cluster ID in the research record because it is useful for retrieval and deduplication. A reader-facing citation and an internal data identifier have different purposes.

4.3 Preserve the opinion's identity within the case

A lead opinion, concurrence, dissent, and combined publication can share the same case-level metadata. Before writing “the court held,” determine who wrote the passage and how it relates to the judgment. If you rely on a dissent's reasoning, identify it as a dissent. If the relevant passage appears only in a concurrence, say so.

In the inspected Iqbal cluster, CourtListener exposes separate opinion records as well as a combined record. This is a practical reason to track opinion-level identity. A search that finds a phrase somewhere in the case does not establish that the phrase is in the lead opinion.

Citation Code model for a separate opinion: [Case name], [citation], [pinpoint] ([year]) ([Justice or Judge surname], dissenting). Use a role description that matches the source. Do not infer authorship from the first name displayed on a database page.

4.4 Handle neutral citations and slip opinions

A neutral citation ordinarily identifies a decision without relying on a commercial reporter's volume and page. Preserve the identifier the issuing court actually assigned. Where the opinion uses numbered paragraphs, use those paragraph numbers for an exact locator when the applicable instructions permit or require that form. Do not convert a database's automatically counted paragraphs into purported official paragraph numbers.

If you use a slip opinion, preserve its docket number, issuing court, decision date, version, and internal pagination. Identify a slip-page locator as such when ambiguity is possible. When the decision later acquires a reporter citation, verify the corresponding passage before replacing the locator. Page 7 of a slip opinion is not necessarily reporter page 7.

Pattern only: [Case name], No. [docket], slip op. at [page] ([court] [decision date]). A working public link may be added when useful and permitted. The pattern must be adapted to the actual document and receiving rules.

4.5 Treat procedural history as information

Include history when it materially affects the use of the decision or when the receiving instructions require it. Identify what happened and to which decision. A later order denying a petition does not turn every statement in the lower opinion into a statement by the higher court. A modification may affect the very passage you plan to quote.

Keep a history log with the original decision, relevant later action, and your checked date. Explain uncertainty to the supervising lawyer or editor before a source is represented as current authority. Citation formatting cannot repair unresolved treatment.

Sources and convention notes

CourtListener, Ashcroft v. Iqbal, metadata and opinion records retrieved October 8, 2026; CourtListener case-law API documentation. The displayed citation patterns are Citation Code practices illustrating conventional identity elements. This chapter makes no substantive assessment of the case's present application.