It has been acknowledged for some years that the early onset of delinquency can predict a long and serious criminal career. Most resources are targeted at the teenage years but this book argues convincingly that research and interventions should be aimed at child delinquents, aged 12 and under.This book addresses key problems in criminological research and makes studies from Holland more accessible to a wider audience. It provides information and analyses on risk factors and reviews screening tools and risk-focused prevention methods. The contributions should increase visibility and accessibility of European policy and practice in the explanation and prevention of child delinquency.