Preparing Tomorrow’s Leaders for Success. In delivering evidence of “what works?” GtD is working with juvenile justice leaders on both sides of the Atlantic. Recently, Alan Mackie demonstrated the ‘value of evaluation’ to a new generation of leaders at Georgia Gwinnett College. Using GtD’s evaluation of the Youth Restorative Intervention as a case study, Alan showed how evaluation provides definitive evidence of what works in reducing both reoffending and costs to the tax payer. Contact Alan via firstname.lastname@example.org to learn how GtD can help your juvenile justice project.