This document discusses policy priorities and data needs regarding child protection. It summarizes the work of Working Group 1, including guidelines published on data collection systems for child abuse. The group aims to facilitate policy development, prevention planning, and budget planning. Examples of comparative international child maltreatment data are provided, such as prevalence of physical punishment from UNICEF surveys. Key issues in monitoring and evaluation systems are outlined, including goals, scope, data collection methods, ethics, and translating data into policy.