The FBI (Federal Bureau of Investigation) is a United States federal law enforcement body, which also serves to support national security and domestic intelligence. (International intelligence is the jurisdiction of the CIA).

The FBI, while available to assist state and local authorities, is generally involved when federal crimes are committed, including organized crime and violations of federal statues, as well as child kidnappings.

References

• Big Bird checks out the book I Was a Budgie for the FBI in Sesame Street Episode 1117.

• A second early 1980s script treatment for a proposed Sesame Street movie depicts Grover as head of the FBI, investigating the plot against President Big Bird.

• Big Bird, stymied by a second mysterious descent of balloons in Sesame Street Episode 1944, suggests it's a case for the FBBI (Federal Bureau of Balloon Investigation).

• A 1989 Muppet Mugshots mug depicting Gonzo claims he's wanted by the FBI (Federal Bizarre Investigation).

• The FBI is one of several law enforcement agencies who planted undercover students in the Dog City episode "Disobedience School."

• The FBA (Federal Bureau of Addition) appears in Sesame Street Episode 3240, represented by Detective (Big) Bird, Special Agent Snuffy, and sidekick Alice.

• In the Farscape comic book issue "Prophet Margin," John Crichton compares the workout room on Cilla to Hogan's Alley, the training facility operated by the FBI Academy.