![]() As new fingerprints are added to the AFIS, criminal investigators can search them against the ULF collection in the hope of making a match. If a criminal investigator matches a latent print to a fingerprint in the AFIS, that individual may be linked to the crime under investigation.Īn AFIS can also house repositories of latent fingerprints that remain unidentified, typically referred to as an unsolved latent file (ULF). If an individual whose fingerprints are in an AFIS encounters the criminal justice system again, a criminal investigator can search the AFIS to establish identity and link the individual with a particular criminal record. An AFIS is a computer system that stores fingerprint images in an organized, searchable data structure that is widely used by criminal justice agencies to maintain databases of the fingerprints of individuals who are arrested or incarcerated.įingerprint databases typically contain rolled fingerprints from each finger ("tenprints") and fingerprints from the whole hand with all the fingers extended in parallel ("slaps"). ![]() The fingerprint images can then be photographed, marked up for distinguishing features by latent fingerprint examiners, and used to search an automated fingerprint identification system (AFIS). Latent prints are typically collected from a crime scene by specialists trained in forensic science techniques to reveal or extract fingerprints from surfaces and objects using chemical or physical methods. Latent fingerprints used in criminal investigations are often crucial pieces of evidence that can link a suspect to a crime. The definitive resource on the science of fingerprint identification. ![]()
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