This document provides an outline and overview of juvenile offenders and youth criminal justice. It discusses the history of juvenile justice legislation in Canada from 1908 to the present. It also covers assessment of young offenders, common behavioral disorders, risk and protective factors, and prevention and treatment approaches. The key points are that legislation has aimed to balance accountability, protection, and rehabilitation over time. Assessment examines consent issues and internalizing vs. externalizing behaviors. Early childhood onset of problems tends to be more persistent compared to adolescent onset.