The latent functionality of the NGI system uses a Friction Ridge investigation file composed of all events retained for an individual, as opposed to a composite set of images by identity. These multiple events in the repository translate to three times the accuracy of previous latent search and allow additional event image retrieval to support difficult cases.
Before the NGI system, latent images were searched in the criminal repository. Now, latent users can search for latent images in criminal, civilian, and unresolved latent file (ULF) repositories. Additionally, incoming criminal and civil submissions (fingerprints, palmprints, RISC, and supplemental fingerprints) are cascaded against the ULF, generating new investigative leads in unsolved and/or cold cases. The CJIS Division recommends that latent fingerprint images submitted before 2013 be resubmitted to the NGI system if no identification was made during the initial search.
In May 2013, the FBI created the National Palm Print System (NPPS). This system contains palm prints that can be viewed by law enforcement across the country. The NGI system also allows direct enrollment and deletion of palm and additional fingerprints similar to the existing direct fingerprint enrollment capability. These types of search and registration enhancements provide powerful new crime-solving capabilities to local, state, tribal, and federal law enforcement agencies across the country.