A fusion center is a terrorism prevention and response center that was started as a joint project between the Department of Homeland Security and the US Department of Justice's Office of Justice Programs between 2003 and 2007. The fusion centers gather information not only from government sources, but also from their partners in the private sector.
They are designed to promote information sharing at the federal level between agencies such as the Central Intelligence Agency (CIA), Federal Bureau of Investigation (FBI), Department of Justice, US Military and state and local level government. As of July 2009, the Department of Homeland Security recognized at least seventy-two fusion centers. Fusion centers may also be affiliated with an Emergency Operations Center that responds in the event of a disaster.
State and local police departments provide both space and resources for the majority of fusion centers. The analysts working there can be drawn from DHS, local police, or the private sector. A number of fusion centers operate tip hotlines and also invite relevant information from public employees, such as sanitation workers or firefighters.