This new edition of a practical manual is a basic reference for IT professionals developing criminal justice and public safety systems. Reviewing fundamental terms, definitions, and organizational structures, it explains the basic business processes used by criminal justice agencies and the systems used to manage those processes. Discussing the challenges to integration and standardization, it enlightens readers to federally sponsored efforts to promote integration and develop such standards as NIEM (National Information Exchange Model). The book cites and pulls together information from various criminal justice agencies as well as government publications.