The toolkit aims to provide researchers with guidance for improving the quality of studies that use administrative data to better ascertain child maltreatment incidence response and service delivery. However these are complex studies to conduct and the toolkit is not meant to be comprehensive. Researchers using the toolkit should be prepared to follow up on the recommended resources contained within and to consult with other professionals such as statisticians to further improve the research design and execution. The introductory section is followed by an overview of previous nation