Calling any system the "largest biometric database" is fraught with complications. Does it contain the largest number of subjects, individual images, on-line vs. off-line, or criminal vs. non-criminal? By most standards the "worlds largest" biometric database is the Indian Aadhaar system which has enrolled around 400 million individuals with finger, iris, and face biometrics. The US DHS Ident system contains approximately 130 million subjects. While the FBI may have the world's largest criminal biometric data base, it would be hard to make the claim it's the worlds largest.
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