Skip to main content

The Secret Service's National Threat Assessment Center has unique and unparalleled experience in identifying threats to safety and preventing tragedies. The following report provides communities with information and best practices to recognize and prevent future mass violence.

Below is a behavioral review of James Hodgkinson, the Congressional Shooter. Click on the link to read the full report.

NTAC's study examined 43 attacks directed toward federal facilities and officials in the United States from 2001 to 2013. Click on the links below to read the full report and three case studies highlighting threat assessment themes. Links to the interactive incident map and timeline are to the right.

The two articles below describe operational considerations for federal, state, and local law enforcement officers about best practices for preventing targeted violence in their communities. The considerations are based on NTAC’s latest report, which examined attacks directed toward federal facilities and officials.

Mission and Vision

The mission of the National Threat Assessment Center (NTAC) is to provide guidance on threat assessment and training, both within the Secret Service and to its law enforcement, public safety, and academic partners. Through the Presidential Threat Protection Act of 2000, Congress formally authorized NTAC to provide assistance in the following areas:

NTAC will lead the development of evidence-based threat assessment techniques to prevent rare, non-random violent acts that impact both local and international communities. Conducting a unique blend of cutting-edge behavior-based research, practical training, and operational guidance, NTAC will serve as the leading resource on ways to assess threats and identify indicators of targeted violence.

For additional information or to request this training, please contact your local Secret Service office.

NTAC Leadership

Dr. Lina Alathari
View bio