A useful case brief helps you return to an opinion with a clear understanding of what mattered: the facts, the question before the court, the rule it applied, and the result. AI can help organize that first draft and give you a structure for closer reading.

This use case walks through a repeatable process: supply the opinion, request a structured brief, check the source, and ask better follow-up questions. You can use an AI tool that accepts PDFs or pasted text. The workflow works across tools and depends on access to the opinion and careful review.

Here, a case brief means a summary of a judicial opinion for research or study. Preparing an appellate brief for filing involves additional work, including the record, governing rules, and legal argument.

Start with the complete opinion

Download the opinion from the court’s website or a reliable legal research service. Check the caption, citation, decision date, and whether the court has issued a corrected or substituted version. Include concurrences and dissents.

Upload the PDF or paste its text, preserving paragraph or page numbers. If you are working with a scanned document, check that the extracted text is readable. Missing pages, garbled footnotes, and omitted separate opinions can leave gaps in the brief.

Before asking for analysis, have the tool identify the case, court, date, and separate opinions it can read. Compare that response with the document yourself. A successful upload does not establish that the tool has processed every page.

For a practice run, use a public opinion unrelated to a client matter. Before entering information relating to a representation, assess the tool’s data terms, your firm’s policies, and applicable confidentiality obligations. ABA Formal Opinion 512 discusses those obligations and the need for independent review of AI work.

Give the AI a structure to follow

A request to “brief this case” leaves many choices to the model. Specify the sections you want and require references that let you check the result. Try this prompt with the opinion attached:

Prepare a case brief using only the attached opinion. Use these headings:

1. Case identification: caption, citation, court, and decision date.
2. Material facts and procedural history.
3. Issues and standard of review.
4. Holdings and the court’s reasoning.
5. Disposition: what was affirmed, reversed, vacated, or remanded.
6. Concurrences and dissents, identified separately.
7. Conditions, exceptions, deadlines, and limits on relief that affect the result.

Cite the opinion’s paragraph numbers for each material proposition. If it has no numbered paragraphs, use its printed page numbers and identify the numbering system. Distinguish the deciding court’s holdings from party arguments, lower-court rulings, and separate opinions.

Do not invent facts, quotations, authorities, or source references. If the opinion does not establish something, say so. Flag uncertainty about holdings or dicta. Do not infer subsequent treatment or current legal status from this opinion.

End with a short checklist of points for me to verify against the source.

These instructions make the draft easier to audit. They cannot guarantee that the AI follows them or that its citations support its statements.

Check the brief against the opinion

Keep the opinion open beside the draft. Start with the issue, holding, and disposition, then work through the supporting facts and reasoning.

  • Check the source references. Open each cited passage. Confirm both that it exists and that it supports the proposition. Compare any quotation word for word.
  • Check who is speaking. A party’s argument, a dissent’s interpretation, or a quotation from another case can be mistaken for the court’s holding.
  • Check the procedural posture. A decision allowing a lawsuit to proceed does not necessarily decide liability or establish the truth of every allegation.
  • Check the qualifications. Look for triggering events, exceptions, deadlines, standards of review, and limits on relief that a short summary might omit.
  • Check the result. Record what happened to each judgment or order and what remains for the lower court to do.

Correct the brief as you go. Asking the same AI whether its answer is accurate can help identify questions to investigate, but source review is how you resolve them.

A worked example: Lichter v. Porter Carroll

The Illinois Supreme Court’s October 26, 2023 opinion in Lichter v. Porter Carroll, 2023 IL 128468 shows why the details matter. The following is an editorial summary checked against that opinion.

Facts and posture. A plaintiff brought a personal-injury action against a defendant who had died before the complaint was filed. After learning of the death, she sought appointment of a special representative. The circuit court ultimately dismissed the action, and the appellate court reversed. See paragraphs 3–8.

Issue and holding. The dispute concerned whether the plaintiff could proceed through the special-representative provision in section 13-209(b)(2) of the Illinois Code of Civil Procedure. The majority concluded that she could use that route in these circumstances, even though she did not know of the death when she filed. See paragraphs 20–22, 27–29, and 35.

Disposition. The supreme court affirmed the appellate court’s judgment, reversed the circuit court’s judgment, and remanded for further proceedings. See paragraphs 37–40.

A useful brief also needs to preserve these qualifications:

  • Recovery limit: The statutory provision quoted in paragraph 10 limits recovery through that route to available liability-insurance proceeds.
  • Time limit: Paragraph 33 measures the two-year period discussed there from the original action’s limitations deadline. A summary saying only “within two years” loses the starting point.
  • Court discretion: Paragraph 34 explains that appointment requires a motion and an exercise of the court’s discretion.
  • Separate opinion: Justice Rochford dissented, joined by Justice Overstreet. Their disagreement with the majority’s statutory interpretation belongs in a separate part of the brief. See paragraphs 41–62.

This example checks what the 2023 opinion says. Before relying on it in a matter, separately check subsequent treatment, the current statute, and the facts that determine whether it applies.

Use follow-up questions to deepen the analysis

Once the basic brief is sound, ask narrower questions tied to the opinion:

  • “Which facts did the court treat as decisive? Cite the supporting paragraphs.”
  • “Where do the majority and dissent disagree about the statute? Explain each reading separately.”
  • “Which questions did the court leave unresolved, and what remains on remand?”
  • “Review this draft for omitted conditions or exceptions. Show the supporting passage for each proposed correction.”

Save the corrected brief with the opinion and your source references. It becomes a useful research note: a concise account you can check, revisit, and build on as the work develops.