While the application of neuropsychology to adult adjudicative competence has been examined previously (cf. Denney & Wynkoop, 2000;Wynkoop & Denney, 1999), there is nothing yet written on the application of neuropsychology to juvenile adjudicative competence. This article is a primer on juvenile adjudicative competence from a neuropsychological perspective, briefly describing some of the issues relevant to juvenile adjudicative competence, the complexities of juvenile justice, neuropsychological development (normal and problematic), neuropsychological differences between adults and children (development and assessment), application of child neuropsychology to adjudicative competence, and suggestions for future directions.