Crime, courts & justice
Forensic junk science and the innocent people it convicted
12 min
Bite-mark analysis, hair comparison, and other techniques were treated as hard evidence for decades before being exposed as unreliable — how flawed forensics sent people to prison, and the ongoing reckoning.
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Show notes
Bite-mark analysis entered the courtroom through legal precedent rather than rigorous laboratory validation.
Human skin is too elastic to reliably record or preserve unique dental impressions.
FBI analysts overstated the significance of hair matches in ninety-five percent of reviewed cases.
Judges often prioritize past legal rulings over current scientific data when admitting evidence.
Forensic labs frequently lack independence from the police and prosecutorial offices they serve.
Bloodstain analysis is highly vulnerable to contextual bias and narrative confirmation during investigations.
In this episode
- 1Intro1 min
- 2The Myth of the Unique Impression3 min
- 3The Microscopic Illusion3 min
- 4The Legal Loophole: Precedent over Proof2 min
- 5The Broader Spectrum of Unreliability3 min
- 6Outro1 min
Sources
- The Impact of False or Misleading Forensic Evidence on ...
- Bite mark analysis has no basis in science, government experts say. Yet there are still people in prison because of it.
- When the Science Was Never There: Junk Forensics, Unethical Investigations, and the Institutions That Kept Using Both - clutch.
- How Faulty Bite Mark and Hair Analysis Can Lead to ...
- Forensic bitemark identification: weak foundations, exaggerated claims
- Junk Science - Bloodstains & Bite Marks - Legal Talk Network
- Junk Science
- Louisiana Supreme Court Compares Bite Mark Evidence to 17th Century Witch Trials - News Usa Today
- Bite Mark Evidence: 36 Shocking Wrongful Convictions Exposed
- Suspect Science Transcript | ASHES ASHES
- Bitemark Analysis: A NIST Scientific Foundation Review
- Bitemark Analysis: A NIST Scientific Foundation Review | NIST
- Keith Allen Harward - Innocence Project
- Forensic Science in Criminal Courts: Ensuring Scientific ...
- Summary of Published Criticisms of Bitemark Foundations and Responses by Forensic Odontologists
- Forensic Bitemark Analysis Not Supported by Sufficient Data, NIST Draft Review Finds | NIST
- AN ADDENDUM TO THE PCAST REPORT ON FORENSIC SCIENCE IN CRIMINAL COURTS
- PRESIDENTForensic Science in Criminal Courts:Ensuring Scientific Validityof Feature-Comparison Methods
- MICROSCOPIC HAIR
- FBI Testimony on Microscopic Hair Analysis Contained Errors in at Least 90 Percent of Cases in Ongoing Review — FBI
- A Post-Mortem Review of Forensic Hair Analysis – A Technique Whose Current Use in Criminal Investigations is Hanging on by a Hair
- Reality Bites: The Illusion of Science in Bite-Mark Evidence
- PRESIDENTForensic Science in Criminal Courts:Ensuring Scientific Validityof Feature-Comparison Methods
- PRESIDENTForensic Science in Criminal Courts:Ensuring Scientific Validityof Feature-Comparison Methods
- Why Bite Mark Evidence Should Never Be Used in Criminal Trials - Innocence Project
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