DNA profiling was first developed in the 1980s and the first national forensic DNA database was established in 1995. Today, about 60 countries store DNA profiles in the national forensic database. Unknown and known are two types of DNA profiles that are stored. Unknown DNA profiles are found from samples that are gathered at crime scenes and known DNA profiles are samples taken directly from a person. DNA can provide evidence to solve a crime when there are no leads and investigative methods have failed to identify any suspects. There has been success were a DNA sample from a crime scene matches with a profile in the DNA database. DNA analysis can help eliminate innocent suspects. Prints that are recovered from crime scenes are submitted to an automated database called the Integrated Automated Fingerprint Information System (IAFIS). Its a national computerized system for sharing, comparing and exchanging fingerprint data. Stores criminal history information, fingerprints, criminal subject photographs and information regarding military and civilian employees. Provides positive identification of individuals through ten-print and latent fingerprints and can identify individuals based on descriptive information such as name, date of birth, body markings and identification numbers. The IAFIS was able to solve a 45-year-old double police murder, which is the oldest case solved through the system.
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