Peter Kennison has been a practitioner and an academic for over 35 years. He joined the Metropolitan Police in 1970 and, after a career spanning more than two decades, he served on five police divisions in north and east London, the Police Training School at Hendon and in the Complaints Investigation Branch (CIB3) at New Scotland Yard.His operational experience brought him into contact with children who were often victims, while others were offenders. As an insider, Peter is perfectly placed to consider the legal, institutional and social aspects of child protection. His further interests include policing and community safety. Peter is a Senior Lecturer and Criminology undergraduate Programme Leader. Professor Anthony Goodman has been a practitioner and an academic for over 30 years. His first post as a probation officer included responsibility for liaising with a hostel for unstable drug addicts. He developed a continuing interest in this client group and now runs a Masters applied criminology programme at Middlesex University and also teaches in social work.