Annual statistics concentrate on the flow of young people (aged 10-17) through the Youth Justice System in England and Wales.
Details of all the administrative databases and bespoke collections used for youth justice statistics can be found in a guide to youth justice statistics. This contains further information on the data sources, methodologies, data quality and terminology
For the 2018 to 2019 publication, assaults data for Young Offender Institutions will be drawn from a new data source (NOMIS’ Incident Reporting System (IRS)) compared to previous publications. This change in data source and counting rules will improve the accuracy of the data presented but will result in a break in time series and mean that for the 2018 to 2019 publication the information cannot be aggregated to provide a total across the whole youth secure estate.