From the Executive Summary: "The information provided in this guide is based on the collective expertise and experience of Federal Government law enforcement officers, security specialists, criminal investigators, attorneys, employee relations specialists, employee assistance program counselors, forensic psychologists, and union officials. It consists primarily of lessons learned from many years of experience with actual cases involving potentially violent employees. The guidance covers not only the macro issues of facility security, but also incidents of physical violence such as shootings and assaults and the far more prevalent incidents of nonphysical violence, intimidation, bullying, and other inappropriate behaviors prone to create an environment that can exacerbate the potential for violence." To access the appendices, visit https://www.hsdl.org/?abstract&did=826930.
Department of Homeland Security: http://www.dhs.gov/