This advanced training and reference manual is designed to aid investigators and prosecutors in dealing with white collar computer crime. The first five sections follow the typical order of events for prosecutors handling a criminal case: classifying the crime, computer abuse methods and detection, experts and suspects using information systems, the computer crime environment, and computer crime prosecution. Each section contains a description of that section, how the information may be used, and its relevance. The sixth section, computer crime law, was written by an attorney and provides legal citations. It is suggested that readers begin by studying the overview of technology in the seventh section, and by reviewing the glossary of terms. Appendices A and B include representative federal legislation and citations of computer crime statutes. Appendices C through H supply information on cases in the news, data processing occupations, audit tools and techniques, computer intrusion recovery guidelines (debugging), advance preparations, and time-sharing usage examples. Appendix I contains sources of further information and contacts. An index by subject is also provided. (DB)