Linked from

The 41 pages that link to Federal Bureau of Investigation, each with the reason it gives.

• Central Intelligence AgencyCompared with: Unlike the CIA, the FBI has domestic investigative and law-enforcement authority.

• House Un-American Activities CommitteeRelated: FBI information and congressional investigations both shaped public claims about communist activity.

• J. Edgar HooverBroader topic: Hoover joined this predecessor agency in 1917 and became its director in 1924.

• Al CaponeRelated: Federal agents pursued Capone’s organization, though the decisive tax case was developed by Treasury investigators.

• United States Department of JusticeBroader topic: The FBI is the department’s principal investigative agency.

• CounterintelligenceRelated: The FBI became a central U.S. agency for domestic counterintelligence investigations.

• Organized crime in the United StatesNarrower topic: The FBI investigates many major cases involving interstate criminal organizations.

• Church CommitteeRelated: Its surveillance and disruption programs formed a major part of the committee's findings.

• BootleggingRelated: Federal investigations targeted interstate bootlegging networks and prominent criminal organizations.

• COINTELPRORelated: FBI agents and field offices carried out the program under bureau leadership.

• Drug Enforcement AdministrationRelated: The FBI and DEA may share jurisdiction and coordinate investigations involving organized crime or drug trafficking.

• Pinkerton National Detective AgencyCompared with: Its creation expanded federal investigations as national policing became less dependent on private detectives.

• John GottiRelated: The FBI collected surveillance evidence that helped build the case against Gotti.

• FBI Ten Most Wanted FugitivesRelated: The FBI selects and maintains the Ten Most Wanted Fugitives list.

• John DillingerNarrower topic: The FBI’s pursuit of Dillinger became a landmark episode in its growth and public visibility.

• Los Angeles Police DepartmentCompared with: Federal jurisdiction distinguishes FBI investigations from the LAPD’s local law-enforcement responsibilities.

• Judy HollidayRelated: The FBI investigated Holliday amid concerns about alleged communist connections.

• Mark FeltNarrower topic: Felt spent decades in the agency and held its second-highest post during Watergate.

• Paul CastellanoRelated: FBI surveillance and investigations helped document the Mafia’s response to Castellano’s murder.

• Waco siegeNarrower topic: The FBI took over the siege after the initial ATF raid.

• Dick WolfRelated: The real agency provides the institutional setting fictionalized in Wolf’s FBI franchise.

• Fred HamptonNarrower topic: The FBI’s surveillance and informant work linked the raid to federal operations.

• Robert MuellerNarrower topic: Mueller’s twelve-year directorship made the bureau the central institution in his career.

• Joseph MassinoRelated: The FBI investigated the Bonanno family and developed the cases that led to Massino’s conviction.

• Sam GiancanaRelated: The FBI investigated Giancana and the Chicago Outfit during his leadership.

• Timothy McVeighRelated: The FBI led the investigation and assembled the case against McVeigh.

• Baby Face NelsonRelated: Nelson’s pursuit became part of the agency’s high-profile campaign against gangsters.

• Bugs MoranRelated: Federal investigators pursued Moran in later criminal cases, including his kidnapping conviction.

• Kash PatelBroader topic: Patel became the bureau's director in 2025.

• Law enforcement agencyBroader topic: The FBI illustrates a national agency with broad investigative responsibilities.

• Lepke BuchalterRelated: The FBI investigated Buchalter’s organization and helped pursue him after his surrender.

• Patty HearstRelated: The FBI located and arrested Hearst after her time with the SLA.

• Saint Valentine's Day MassacreRelated: The case drew federal attention, although the killings were never conclusively solved.

• Semion MogilevichRelated: The FBI has accused Mogilevich of leading a major transnational criminal network.

• Whitey BulgerRelated: The agency’s handling of Bulger as an informant damaged public trust in its Boston office.

• Christopher A. WrayNarrower topic: Wray's directorship placed him at the head of the bureau's investigative and intelligence work.

• D. B. CooperRelated: The FBI coordinated the ransom delivery, surveillance, and ensuing manhunt.

• Joseph D. PistoneRelated: The FBI designed and supported Pistone’s long-term undercover assignment.

• Ma BarkerNarrower topic: Its agents led the operation that ended in Ma Barker’s death.

• Mexican MafiaRelated: Federal investigations and prosecutions have targeted alleged La Eme leaders and associates.

• William H. WebsterCompared with: Webster’s rare succession from FBI director to CIA director linked the two agencies in one career.