Laboratory

Director Comey Letter to State Governors Requesting Additional Case Information from Prosecutors (2/26/16)

The FBI, in conjunction with the Department of Justice (DOJ), is engaged in a review of scientific testimony provided by FBI Laboratory examiners in cases involving microscopic hair comparisons.

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Sample Letter to Prosecutors

The DOJ and the FBI are engaged in a review of microscopic hair comparison analysis testimony and reports provided by the FBI Laboratory before December 31, 1999, by which time the Laboratory had adopted the practice of mitochondrial DNA testing.

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Black Box Study, Survey Responses

The “Survey Responses” data table containing the responses to the survey questions for the "Black Box" study.

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Black Box Study, Test Responses

The “Test Responses” data table containing the responses to the test questions for the "Black Box" study.

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Supplementary Information: Haber and Haber Annex

This table details the errors we found in the Haber and Haber text; these are generally in addition to the issues raised in the previous discussion.

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Biometric Analysis Section Case Acceptance Guidance

This case acceptance document helps in understanding the Biometric Analysis Section's testing capabilities and to advise of those evidentiary items necessary to perform a complete serological, nuclear DNA (nDNA), and mitochondrial DNA (mtDNA) analysis.

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Director Comey Letter to Additional Governors on State Reviews

The nature of hair sample comparison by FBI examiners in the 1990s and how it related to cases from that time is discussed.

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Handbook of Forensic Services

The Handbook of Forensic Services provides guidance and procedures for safe and efficient methods of collecting, preserving, packaging, and shipping evidence and describes the forensic examinations performed by the FBI’s Laboratory Division.

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Quick Reference Guide for Laboratory Examinations

This document describes general types of evidence you may want to submit, what Laboratory unit can examine your evidence, and the types of examinations that may be conducted.

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Records Testimony Request Form

For use by local, state, and federal law enforcement agencies to request an FBI-certified tenprint examiner to provide written and/or verbal expert fingerprint testimony.

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