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                            Library & Multimedia
 Traceability for ballistics signature measurements in forensic science
NCJ Number
              303989

Author(s)
          John Song;
                        Theodore Vorburger;
                        Susan Ballou;
                        Li Ma;
                        Thomas Renegar;
                        Alan Zheng;
                        Martin Ols
Date Published

December 2009
Length
              6 pages
Annotation
              In this paper, basic concepts and specific requirements for establishing ballistics measurement traceability are introduced.
Abstract
              Three key issues are discussed: (1) establishing a reference standard; (2) establishing an unbroken chain of calibrations; and (3) evaluating measurement uncertainty for both the geometrical topography measurements and the optical image correlations of the ballistics signatures. The National Institute of Standards and Technology (NIST) in collaboration with the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) has developed the Standard Reference Material (SRM) 2460 Bullets and 2461 Casings. NIST has also developed a 2D and 3D Topography Measurement and Correlation System for ballistics signature measurements. This system includes stylus instruments and a confocal microscope for 2D and 3D topography measurements, and a 2D and 3D topography correlation program developed by NIST. NIST and ATF are proposing to establish a National Ballistics Measurement Traceability and Quality System using these materials. (publisher abstract modified)
      
  
          Additional Details
Grant Number(s)
        2003-IJ-R-029
                                2008-DN-R-121


  
  
        
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        NIJ-Sponsored


  
  
        
  Publication Type
        Research (Applied/Empirical)
    
  
  
Date Published: December 1, 2009
    
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        Ballistic fingerprint
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