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What is the role of fingerprinting or biometrics in background checks?

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Fingerprints of a person are captured to gather his identity by keeping all his records within the database. When taking the fingerprint of a person a pattern is generated and recorded in the database for future investigations. Many big organizations like the FBI (Federal Bureau of Investigation), and CBI (Central Bureau of Investigation) uses fingerprint biometrics in background checks to investigate criminal record as no two persons can have the same fingerprints. When a match is found all the previous criminal records of a person can be gathered and analysed to account for his next move.   Digital fingerprint services   are used to get the non-criminal record which is mandatory in many fields such as taking citizenship, visas approval, checking criminal records, etc. A particular fee is taken for such work. This database can be accessed only by those employees who have legal authority. The database is similar to the other criminal record database that is being used by law enforcemen