Shepardizing

A term used in the legal profession to describe the process of using a citator to discover the history of a case or statute to determine whether it is still good law.

The expression is derived from the act of using Shepard's Citations. An individual checking a citation by shepardizing a case will be able to find out various information, such as how often the opinion has been followed in later cases and whether a particular case has been overruled or modified.