Atlas Trail
When Forensic Science Outran Its Own Evidence
A path through forensic disciplines whose courtroom claims once exceeded what the underlying research actually supported, and the wrongful convictions that followed: fingerprint identification's own black-box error study, bite-mark comparison's retreat to exclusion-only findings, polygraph's contested accuracy, and two of the best-documented American cases where a coerced confession, not forensic evidence, drove a wrongful conviction.
Stop 1 of 6.
Forensic Disciplines and Methods
Fingerprint identification: a 2011 black-box study finally measured examiner error rates directly, decades after courts began treating matches as certainties.
Stop 2 of 6.
Forensic Disciplines and Methods
Bite-mark comparison: the certifying body itself retreated from identification claims to exclusion-only findings between 2007 and 2018.
Stop 3 of 6.
Forensic Disciplines and Methods
Polygraph testing: excluded from most US criminal trials, still contested between examiners' own professional body and independent reviewers.
Stop 4 of 6.
Foundational Concepts
False confession: the human factor behind several of the era's highest-profile wrongful convictions, forensic evidence or not.
Stop 5 of 6.
Landmark Cases
The Central Park Jogger case: five convictions built on coerced confessions, vacated in 2002 after the true perpetrator confessed and DNA confirmed it.
Stop 6 of 6.
Landmark Cases
The West Memphis Three: convictions secured largely through a coerced confession and a satanic-panic-era prosecution, released in 2011 after new DNA testing.
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