The California State Threat Assessment Center (STAC) is the centerpiece of the State's information sharing environment (ISE), and provides for the State's subsequent ability to maintain situational awareness over its broad threat domains in an effort to prevent and mitigate the threats against the lives and property of its citizens.  The STAC provides strategic intelligence analysis to statewide leadership, policy makers and private sector partners.  The analysis is focused on the terrorist and extremist threats to the public, critical infrastructure, and key resources; and criminal threats to the public welfare from drug trafficking organizations, human smugglers and traffickers, and street gangs.

Privacy and Civil Liberty Protection
Vitally important to the success of the STAC and its mission is its ability to protect and preserve the integrity of the privacy rights and civil liberties of the people of the State of California.  To that end, all STAC activities are informed by, and guided through, strict adherence to all applicable state and federal laws, information sharing guidelines, policies and regulations.

History
California's fusion center system was built as a direct result of the events of 9/11, and the national information sharing deficiencies preceding it.  In 2004, the California Emergency Management Agency (CalEMA), formerly the Governor's Office of Homeland Security (OHS) developed a plan, as a part of its homeland security strategy, to establish four regional, locally owned and operated fusion centers - ultimately resulting in the current State Threat Assessment System (STAS) - of which the STAC serves as the State level partner.