Crime scenes associated with child sexual exploitation and trafficking in child pornography were once limited to physical locations such as school playgrounds, church vestibules, trusted neighbors' homes, camping trips and seedy darkly lit back rooms of adult bookstores. The explosion of Internet use has created a virtual hunting ground for sexual predators and has fueled a brisk, multi-billion dollar trade in the associated illicit material. Approximately half of the caseload in computer crimes units involves the computer assisted sexual exploitation of children. Despite the scale of this problem, or perhaps because of it, there are no published resources that bring together the complex mingling of disciplines and expertise required to put together a computer assisted child exploitation case. This work fills this void, providing police, prosecutors and forensic examiners with the historical, legal, technical, and social background for the laws prohibiting child exploitation, in particular, child pornography. The book will become an indispensable resource for those involved in the investigation, prosecution and study of computer-assisted child sexual exploitation.