In both court systems there are certain important documents which are produced that you may be asked to help patrons locate. THE most important of these are opinions.
Opinions
Stare Decisis - Let the decision stand
Opinions/decisions are published in “reporters” both in print and online.
Free Sources:
Here's a screenshot of some of the LOC's collection of Federal Supreme Court Opinions published in US Reports, (https://www.loc.gov/collections/united-states-reports/about-this-collection/united-states-reports-by-volume/) and you can browse through by volume to locate the opinion you're looking for.
The opinion provided is a very well-known case:
Dred Scott v. Sandford, 60 U.S. 393 (1856)
Dred Scott v. Sandford which was a case in 1857 involving a slave named Dred Scott who sued for his freedom, stating that because of his residence in a free state that made him a free man. The court decided 7-2 that he lost and that he was not free and actually the case law then became that "a negro whose ancestors were imported and sold as slaves could not be an American citizen." This was largely considered one of the worst ever Supreme Court decisions in history, it was then overturned by the 13th and 14th amendments to the Constitution which abolished slavery.
The case can be located by looking in volume 60 of the US Reports and going to page 393 as you see in the citation. And you'll see here, what we get when we look up the case is just that - the case, no other information about it.
Case Opinions with Editorial Enhancements
Now if we looked up that same case on one of the major legal research platforms such as Westlaw Edge we see the power of the editorial enhancements and the built in citator service.
For state opinions, these can be a little tougher to track down. But there is a national reporter system that prints all state opinions in regional reporters such as the Northwestern regional reporter covering multiple states such as Iowa, Minnesota, Nebraska, and about 4 or 5 others. And then for very populous states such as California and New York, those states may have their own reporters.
You can find state opinions online via the state court system websites and these can be found in the us courts guide to courts by state linked here, as well as on any of these other services such as Westlaw and Lexis.
Dockets
Records & Briefs