Editor’s note: Dr. Sanjay Gupta goes inside a crime lab where he learns how reliable forensic evidence can be in investigating criminal cases. A recent report by the National Academy of Science, issued a scathing assessment of the forensics field. The report indicated that "with the exception of nuclear DNA analysis, no forensic method has been rigorously shown able to consistently, and with a high degree of certainty, demonstrate a connection between evidence and a specific individual or source." Much of forensic science –with the exception of DNA and toxicology testing - is not backed by clinical study and most forensic crime labs are unregulated. The Innocence Project, a public policy organization, works to overturn wrongful convictions based on DNA evidence.
The Innocence Project
These forensic “impressions” were used to wrongfully convict a man of kidnapping and rape when he was 23. He was recently released from prison at the age of 43.
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