JP 3-28, page 62

Chapter III III-6 JP 3-14 damage, DOD forces may take direct action until responsible authorities (e.g., DOJ, DHS) can respond. (b) Under this type of support, specific rules for the use of force (RUF) must be established and approved. In the absence of preexisting RUF, requests for RUF for DSCA missions will be sent through the supported CCDR and the Assistant Secretary of Defense (Homeland Defense and Global Security) (ASD[HD&GS]) for development and to SecDef for approval. Mission-specific RUF may be required depending on the situation. (c) Military responses to a credible threat and acts of terrorism may require incident management operations (that includes responding to the incident itself and law enforcement activities), which often overlap. (d) The FBI manages counterterrorism operations through the Strategic Information and Operations Center (SIOC) and joint operations centers (JOCs). The SIOC is the FBI’s worldwide operations hub and supports connectivity with other federal operations centers, such as the DHS national operations center, the DOD National Military Command Center, and National Counterterrorism Center, to rapidly gain and disseminate situational awareness and deploy resources as appropriate. This includes C2 of joint interagency investigative and domestic intelligence efforts led by the FBI on-scene commander (OSC) through its JOCs. The SIOC and FBI JOCs ensure effective coordination and liaison with partner agencies, strategic communications, and coordination and information sharing with other leaders, as appropriate and IAW classification and legal requirements, to manage the threat. (e) An FBI JOC is a multijurisdictional, interagency investigative, and intelligence operations center led by the FBI OSC and supported by a multiagency command group. The FBI JOC is the place from which the FBI leads and coordinates law enforcement investigations, intelligence activities, and counterterrorism in response to terrorist threats or incidents. The FBI OSC establishes the JOC within a regional AOR; the OSC is the designated senior FBI representative responsible for leading and coordinating all law enforcement and investigative operations to prevent or resolve terrorist threats or incidents and for preserving evidence for subsequent criminal prosecution. Additionally, the FBI OSC has primary responsibility to conduct, direct, and oversee crime scenes, their security, and evidence management, including fatalities management, through all phases of the response, managed through an FBI JOC. For national special security events (NSSEs), the JOC is suspended in watch mode and is supported by an intelligence operations center. The intelligence operations center leads and coordinates the law enforcement intelligence activities and analysis to deter, detect, and prevent threats related to the security of an NSSE. The JOC is staffed by federal departments, state and local LEAs, private industry, and other entities as may be appropriate. For more information on responses to domestic terrorism incidents, see the National Prevention Framework and the Terrorism Incident Law Enforcement and Investigation Annex.