The first JTTF was established in 1980 in New York City , with ten FBI special agents and ten New York City Police Department ( NYPD ) detectives . Prior to the attacks of September 11 , 2001 , the United States had 35 JTTFs . Shortly after the attacks , FBI Director Robert Mueller instructed all FBI field offices to establish formal terrorism task forces . There are now 100 Joint Terrorism Task Forces nationwide , including at least one at each of the FBI field offices
attacks of September 11 , 2001
September 11 attacks
Joint Terrorism Task Force