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How did police match fingerprints before computers?

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Look at http://www.crime-scene-investiga... . Individual fingerprints tend to fall into patterns such as arches as loops and there was a set of rules for filing them according to the patterns. read more

Used to be that the FBI, states, and large local departments kept actual fingerprint cards indexed by name and various print characteristics. When a fingerprint identification request was made some poor schlub would classify the print and then visually compare it to all of the other prints on file with that classification. A long, tedious process. read more

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