The consideration of witness testimony had traditionally been a task left to fact-finders with scant guidance from legal professionals. As a result, various practices have developed during the investigative and trial process which can obscure or even eradicate critical material. Miscarriages of justice will continue to occur, so long as those working within the justice system continue to accept witnesses and their testimony at face value. This book aims to make practitioners, as well as the fact-finders and those who guide them, aware of a wide range of perspectives on witness testimony. Each contributor identifies bad practice and puts forward ideas for improvement or removal of previously acceptable investigative and forensic methods.