The general purpose of this study was to evaluate two community protective service systems in terms of the mechanisms for the identification and the handling of child abuse and neglect cases and the effectiveness of the intervention. Data were collected at two sites. One was a comprehensive 24-hour program, and the other was a more traditional system. Findings relevant to the nature and effectiveness of the systems' service interventions are reported. The monograph is sufficiently detailed to serve as a model for other programs. (Author/LFB)