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Forensic Evidence Isn't As Reliable As You Might Think | ThinkProgress


Forensic Evidence Isn't As Reliable As You Might Think | ThinkProgress: If you were to judge the criminal justice system based on TV shows like Law and Order or CSI, you might think forensic evidence is conclusive proof of a person’s guilt. Reality is much messier. DNA is widely considered an accurate indicator of a defendant’s involvement in a crime, but prosecutors also turn to less trustworthy evidence, including hair microscopy, bite mark comparisons, firearm tool mark analysis and shoe print comparisons. There is little research to suggest that forensic matches are scientific and infallible.

The FBI and DOJ recently admitted that hundreds of convictions involved flawed hair comparisons, even though research about how common it is for different people’s hair to look the same does not exist. Similarly, there are no scientific studies proving that individuals have unique fingerprints or dental prints. There are no guidelines to determine a match between a shoe print found at a crime scene and that of a suspect. And there is no proof that bullet marks are uniquely connected to a specific firearm.

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Dispatch: Aboriginal Press Media Group  |   Permalink  |   [23.10.15]  |   0 comments


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