A national fingerprint and criminal history system that responds to requests 24 hours a day, 365 days a year to help law enforcement agencies solve and prevent crime and catch criminals/terrorists. IAFIS is the largest criminal fingerprint database in the world, housing the fingerprints and criminal histories for more than 70 million subjects in the criminal master file, along with more than 34 million civil prints. For more information, visit: https://www.fbi.gov/about-us/cjis/fingerprints_biometrics/iafis/iafis