This book is designed to be an invaluable, practical source of help to all those working in the complex area of vulnerable witnesses. It is structured to follow the chronology of an investigation from the first steps of identifying a vulnerable witness through to trial and includes helpful case studies with examples outlining potential pitfalls during the investigation and possible solutions. It covers key topics such as identifying vulnerable witnesses, protection of vulnerable witnesses throughout the criminal justice process, pre-interview contact, assessing competence, multi-agency working, interviewing and pre-trial preparation.