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NAS Report 2009

Definition

'Strengthening Forensic Science in the United States: A Path Forward,' published by the National Academy of Sciences. Found that fire investigation pattern indicators lacked empirical validation, that proficiency testing was absent, and that Daubert-relevant error rates were unknown. Triggered a decade of reform in US forensic science.

Published
2009 by the National Academy of Sciences
Scope
Critical evaluation of all forensic disciplines in the United States
Key finding
Bite-mark analysis, fire investigation, and other methods lacked scientific validation and proficiency testing
Impact
Triggered a decade of reform in US forensic science practice and standards

Common questions

What is the NAS report and why does it matter in forensic science?+

The 2009 NAS report (Strengthening Forensic Science in the United States: A Path Forward) was a landmark evaluation by the National Academy of Sciences that critically examined forensic disciplines across the entire field. It found major gaps in scientific validation, proficiency testing, and documented error rates, sparking a decade of reform in how forensic evidence is gathered and testified to in court.

What did the NAS report say about bite-mark analysis?+

The report identified bite-mark analysis as lacking adequate scientific validation. This finding led to increased scrutiny of its reliability and error rates.

Did the NAS report only look at bite marks?+

No. The report examined all forensic disciplines. It found that fire investigation pattern indicators lacked empirical validation and that proficiency testing was absent across disciplines. These findings went beyond any single method and called for systemic improvements to how forensic science is practiced and verified.

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