FBI Case Files

Records: 2,313,321 · Complete: 100%

These case files cover important investigations by an agency of the US government later known as the FBI, called the Bureau of Investigation. They include tales of espionage during World War I, case files for German aliens who were politically suspect, records pertaining to Mexican neutrality, and reports dealing with alleged violations of Federal laws. Serious, as well as far-fetched accounts will give you a fresh insider's perspective to the history of this time period.

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Example Records

Source Information

Fold3, FBI Case Files (/title/74/fbi-case-files :accessed September 20, 2020), database and images,

Publication Title
FBI Case Files
Total Records
Records: 2,313,321 · Complete: 100%
Content Source
The National Archives logoThe National Archives
Publication Number:
Published on Fold3
September 26, 2006
Last Updated
April 3, 2010
NARA M1085. Before it was called the FBI, the Bureau of Investigation investigated real and perceived threats to the nation and its citizens.