The report was undertaken jointly by the Accounts Commission and me, as the issue clearly involves local authority services as well as other public services, and follows up a commitment made in the baseline report "Youth justice in Scotland" that we produced a little while ago. Our intention was to carry out a comprehensive performance audit to review the full range of services for young offenders in Scotland and assess the extent to which good practice has been met.Because of the size, complexity and ambition of the study, we have produced three documents: the main report, which runs to almost 100 pages; a summary report; and a four-page executive summary, which is reproduced at the beginning of the main report.