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by DougWebb
3683 days ago
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They're not destroyed because the prints aren't just used to determine if the person has committed a crime in the past; they're used in case a crime is committed in the future, and the only evidence for the criminal's identity is fingerprints collected from the scene. Without the records, every potential suspect would have to be fingerprinted again. I'd rather have my prints on file and be automatically cleared of suspicion than have the police show up at my door to bring me in for prints and questioning, especially if there is a high-profile crime (involving children, for example) and the media are digging around the lives of every suspect. |
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There's a difference between retaining the fingerprints of convicted criminals as part of their case file and pre-emptively collecting fingerprints on people who are not even suspected of a crime.
If there's anything less than a 0% false-positive rate, having a massive database of fingerprints to scan without any criterion will just make it more likely that the police will show up at your door because "your prints were found at the scene" of some crime.