This book provides the most comprehensive and authoritative book yet published on the subject of criminal investigation, a rapidly developing area within the police and other law enforcement agencies, and an important sub discipline within police studies. The subject is rarely out of the headlines, and there is widespread media interest in criminal investigation. Within the police rapid strides are being made in the direction of professionalizing the criminal investigation process, and it has been a particular focus as a means of improving police performance. A number of important reports have been published in the last few years, highlighting the importance of the criminal investigation process not only to the work of the police but to public confidence in this. Each of these reports has identified shortcomings in the way criminal investigations have been conducted, and has made recommendations for improvement .  The Handbook of Criminal Investigation  provides a rigorous and critical approach to not only the process of criminal investigation, but also the context in which this takes place, the theory underlying it, and the variety of factors which influence approaches to it. It will be an indispensable source of reference for anybody with an interest in, and needing to know about, criminal investigation. Contributors to the book are drawn from both practitioners in the field and academics.