FBI Starts Using Polygraphs in Probe of Internal Leaks

The bureau declined to provide additional information.

Federal Bureau of Investigation Director Kash Patel during an annual worldwide threats assessment hearing at the Longworth House Office Building in Washington on March 26, 2025. Kayla Bartkowski/Getty Images

The FBI has started using polygraph tests as it probes internal leaks, the bureau confirmed on April 29.

“We can confirm the FBI has begun administering polygraph tests to identify the source of information leaks within the bureau,” a spokesperson for the FBI told The Epoch Times via email.