FBI Special Weapons and Tactics Teams (SWAT) are specialized tactical teams of the Federal Bureau of Investigation (FBI). SWAT agents are specially trained to intervene in high-risk events like a hostage and barricade situations. The FBI maintains SWAT teams at each of its 56 field offices throughout the country varying in size up to about 42 members. In the event of a large-scale problem that local law enforcement does not have the resources to handle, FBI SWAT teams from the local field office, as well as outside the local region can be dispatched to aid the local authorities.