Electronic Crime Scene Investigation: A Guide for First Responders, Second Edition, April 2008: “Computers and other electronic devices are being used increasingly to commit, enable, or support crimes against persons, organizations, or property. This National Institute of Justice guide is intended for first responders to a variety of crime scenes who may have the responsibility of protecting, recognizing, collecting, and preserving electronic evidence at the scene.” (NCJ 219941, 74 pages, PDF)