Book excerpt: This book describes the ways that technology is impacting criminal justice. It represents the concerns of criminal justice teachers, practitioners, and students, and it is presented in four parts: criminal justice education and technology, law enforcement technology, corrections technology, and criminality and technology. It provides practical knowledge about different technology that is useful on many levels. The second edition contains nine new chapters. Several chapters explore the level to which faculty are using computers in their teaching. Other chapters enlighten the reader on the ways that criminal justice agencies are using the World Wide Web and automation to inform and interact with the public, hire and train staff, collect and manage data better, share data seamlessly, solve field problems, and classify and track offenders. Chapters also discuss how the digital age is producing new techno-crimes.