A previous post addressed resources for cases pending before the Supreme Court. Most of those are useful for cases decided in the recent past; for example, SCOTUSblog’s Merits Cases section provides news coverage, briefs, transcripts and other information for cases dating back to the Court’s 2007 Term.
When looking for information about older cases, there is a range of resources you can consult.
Suppose you were researching the landmark case concerning a criminal defendant’s right to counsel, Gideon v. Wainwright, 372 U.S. 335 (1963). The case is available in PDF (United States Reports) through the U.S. Supreme Court Library in Hein Online. Free Internet versions include the case law component of Google Scholar.
Briefs from the case are available through U.S. Supreme Court Records and Briefs, 1832-1978. Search and browse features are available to locate the seven documents provided for Gideon, including a Transcript of Record, briefs by the petitioner and respondent, and several amicus curiae briefs. Another good source for briefs is Westlaw Next: when viewing the case, select the Filings tab from the Keycite information for that case and select among available documents.
There is a large body of secondary literature that discusses the case, including legal journal articles, books (notably Gideon’s Trumpet, by Anthony Lewis), historical accounts, even a television production. Useful discovery tools include Google Scholar (especially for interdisciplinary research); combined law review databases on Westlaw Next and Lexis Advance; and after retrieving the case, using the “Citing References” tab on Keycite (Westlaw Next) or the “Other Citing Sources” link in Shepard’s Citations (Lexis Advance).
The BU Libraries Advanced Search engine can be used to find materials that focus on the case: searching by the name of the case, or using keywords such as “gideon” and “right to counsel,” retrieves many articles and books. Also, using “gideon” as a keyword while searching for titles related to criminal procedure allows one to locate discussions of the case in topical books, such as this one.