This resource book provides good practices, innovative techniques and recommendations recognized by an international team of experts. It discusses the legal background of combating child trafficking; and discusses good practices on age assessment and identification of the child; investigative methods; interviewing techniques; and cooperation between law enforcement authorities and NGOs/social service providers. The book is from a project entitled “Comprehensive Training for Law Enforcement Authorities Responsible for Trafficking in Children/Minors” implemented by the International Organization for Migration (IOM) in Vienna.