Forensic Stasis in a World of Flux

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Presentation transcript:

Forensic Stasis in a World of Flux Quattrone Center Spring Symposium Technology in Criminal Justice Reform May, 2016 Philadelphia, PA Mark W Perlin, PhD, MD, PhD Cybergenetics, Pittsburgh, PA Cybergenetics © 2003-2016 Cybergenetics © 2003-2011

Pinkins confined 1989 – 5 men raped an Indiana woman Darryl Pinkins and 2 others misidentified 1991 – wrongfully convicted, 65 year sentence 2001 – DNA mixture evidence 2 contributors found, not the accused but 5 were needed, post-conviction relief denied

Complex data • DNA mixtures • small amounts • degraded DNA

Simple solution (1) Simplify data (2) Peek at answer (3) Calculate statistic • Put people in the process • To overcome software failure • And introduce human bias

Information failure MIX05 (2) – inconclusive, 4-14 zeros MIX13 (3) – 70 of 100 labs falsely include CPI statistic – random number, shutters labs • inclusion, subjective with wrong statistic • exclusion, subjective with no statistic • inconclusive, discard probative evidence

Forces of stasis • human need for certainty • fear of cross examination • self-regulating hall of mirrors • government forensic monopoly • software limitations reduce work • some lawyers fight against truth • state liability for DNA abuse

TrueAllele resolution Capability Human-centered Computer-driven Data Choose Must use all Uncertainty Threshold Probability Neutral Include only Include/Exclude Statistic Random number Probative value Transparent Black box Math disclosed Testable Inner mind Available software Objective No Not given answer Validated 31 (7) studies Accurate Empirically proven Automated Unlimited capacity Frye/Daubert 7 states Item-to-item Connect scenes Cybergenetics © 2007-2010

Pinkins released April 25, 2016

TrueAllele exoneration 1. compared evidence with evidence 2. calculated exclusionary match statistics 3. revealed 5% minor mixture contributor 4. jointly analyzed DNA mixture data 5. showed three perpetrators were brothers found 5 unidentified genotypes, defendants not linked to the crime

Forces of flux • respecting DNA evidence • accurate computer modeling • eliminating human bias • accepting variation in nature • empirical software testing • some lawyers fight for truth • state liability for DNA abuse

Fruits of bad forensic science DNA injustice Fruits of bad forensic science False convictions innocent imprisoned False acquittals guilty go free Unnecessary victimization people harmed

TrueAllele can reopen the past by automatically re-examining DNA data Catalyzing justice “inconclusive” often means failed evidence interpretation State fails to disclose potentially exculpatory DNA Falsely convicted, civil rights violation Tried & acquitted, malicious prosecution Unnecessarily victimized, state liability TrueAllele can reopen the past by automatically re-examining DNA data

More TrueAllele information http://www.cybgen.com/information • Courses • Newsletters • Newsroom • Presentations • Publications • Webinars http://www.youtube.com/user/TrueAllele TrueAllele YouTube channel perlin@cybgen.com