This work addresses specific investigative and forensic processes related to sex crimes for those who work in law enforcement, the defense community, or in the private sector. It is an unprecedented collaborative work - the first working manual for sex crime investigators, written by sex crime investigators and forensic scientists. The key feature of this work is a thorough overview of the investigative and forensic processes related to sex crime investigation. It takes the reader through investigative and forensic processes in a logical sequence, showing how investigations of rape and sexual assault can and should be conducted from start to finish. It is intended to set the investigative and forensic standard for sex crimes investigation. It is designed to be accessible, in terms of language, not only to a detective or investigator who does hands on casework, but to the student in the classroom learning about the subject for the first time. This work is an excellent training manual for sex crime investigators around the world. It is also an excellent textbook for any hands on university course on the subject of sex crime investigation. This work is an excellent supplement for any investigative course involving violent crime or death investigation. It is the only comprehensive reference available on the investigation of sexual assault and rape, a crime 10 times more prevalent than murder. It is authored by qualified investigators and forensic professionals with more than twenty years of collective experience working cases, preparing them for court, and offering testimony. It is written in a clear, practical style, ideal for professionals in forensic nursing, law enforcement, the legal community, and the investigative community.