Final answer:
The incorrect statement regarding headnotes and case briefs is that d)all the provided statements are correct, which implies that there is a mistake when, in fact, all listed statements accurately describe the role and function of headnotes and case briefs.
Step-by-step explanation:
Headnotes, added by court reporter editors, are located at the beginning of a legal case and are intended to help researchers quickly determine the case's relevance. Case briefs provide a condensed but comprehensive summary of a legal case, identifying key components like the facts, legal issues, the court's holding, and the reasoning behind the decision. The purpose of both headnotes and case briefs is to assist legal professionals and researchers in understanding and analyzing legal cases efficiently.