This is the first book about the intermediary scheme, criminal justice's untold 'good news story'. Intermediaries are independent communication specialists who assist children and vulnerable adults at police interview and trial, helping improve the quality of their evidence and providing access to justice to some previously excluded. Intermediaries describe their work, richly illustrated with case examples. Feedback is included from justice system personnel and over 70 judges. This unique book provides a comprehensive explanation of how intermediaries work in practice and gives 'behind the scenes' insights into the criminal process. It will be of interest to practitioners and the wider public in England and Wales and encourage consideration of the scheme elsewhere.