The FBI's Critical Incident Response Group (CIRG) consists of special agents and professional support personnel who provide expertise in crisis management, tactical operations, crisis negotiations, hostage rescue, hazardous devices mitigation, critical incident intelligence, and surveillance and aviation. Through aggressive training programs, extensive research, state-of-the-art technologies and equipment, and far-reaching partnerships with international, federal, state, and local law enforcement agencies, CIRG works to successfully resolve critical incidents worldwide.