Using digests helps a researcher to find all cases from:

• A. Only their own state
• B. Their state, region, jurisdiction, or the entire nation
• C. Only federal circuits
• D. Only the Supreme Court

Answer: (B)

Digests organize case law by topic and by jurisdiction, so you can pull all relevant decisions within a defined scope. With a state digest, you can find every case from that state's courts on the issue. A regional digest widens the view to several states in a geographic area, capturing decisions across multiple jurisdictions. A national digest collects decisions across the entire country, including federal circuits and nationwide authorities. This layered structure lets you conduct comprehensive searches—from your own state up to the whole nation—depending on how broad you want the review to be.

For example, researching a contract issue in California, you could start with California’s digest entries and also consult a regional digest that covers Western states, or expand to the national digest to see how federal courts treat the matter. That breadth is what makes digests so useful: you’re not limited to one place; you can map the cases across the jurisdictional scope you need.

Choosing to limit the search to only your state would miss out-of-state authority; restricting to only federal circuits would overlook state court decisions; and focusing only on the Supreme Court would omit the vast majority of lower-court precedents that still govern the issue.