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It was common practice to use inked fingerprints for official documents -
He wrote the paper describing patterns on hands. -
He described that skin ridges aren't the same in any two people. -
Archaelogists discoverr fingerprints -
He described nine distinct fingerprint patterns -
Collected fingerprints and noticed they weren't altered by age. -
Used fingerprints to identify criminals. -
Started fingerprint classification system. -
Bertillon solved the first murder case using fingerprints. -
The FBI now has 23 million fingerprints on file.