Shepard's Citations

Shepard's Citations is a citator used in United States legal research that provides a list of all the authorities citing a particular case, statute, or other legal authority. The verb Shepardizing refers to the process of consulting Shepard's to see if a case has been overturned, reaffirmed, questioned, or cited by later cases. Although the name is trademarked, it is also used informally by legal professionals to describe citators in general—for example, Westlaw's similar tool called Key Cite.