The first section of the report provides an overview of the National Child Abuse and Neglect Data System and the development of the Detailed Case Data Component. The second section provides data on the number of investigated reports, the characteristics of victims of maltreatment, and data on more than 200 child fatalities. Section 3 provides information, by the type of report source, on the characteristics of children who were reported, the proportion of reports that were substantiated, and the types of maltreatments that were substantiated. Section 4 provides data and information on the characteristics of perpetrators of maltreatment and the types of maltreatment committed by different types of perpetrators. The concluding section summarizes key findings of the initial analysis of the data and plans for future analytical activities. Extensive figures and appended list of all the data elements in the Detailed Case Data Component, comments from each State that help give context for interpreting their data, and data tables that detail results of each of the analyses discussed in the paper