Attorneys use two citation tools to determine the validity of a case: Shepard's on Nexis-Uni and KeyCite on Westlaw. Warning: currency and scope are limited on the academic versions of these services. They should not be used outside the teaching environment.
Nexis-Uni
Retrieving a Shepard's® report by citation can be done by entering the citation name in the case search box, then click the Shepard's Signal™ indicator next to the document name.
Westlaw Campus
Keycite information automatically appears to the left of a retrieved case.