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                            Library & Multimedia
 The Variability in Likelihood Ratios due to Different Mechanisms
NCJ Number
              249339
Journal

*Forensic Science International - Genetics* Volume: 14 Dated: January 2015 Pages: 187-190
Author(s)
          Jo-Anne Bright;
                        Kate E. Stevenson;
                        James M. Curran;
                        John s. Buckleton
Date Published

January 2015
Length
              4 pages
Annotation
              This study explored the size of the Markov chain Monte Carlo techniques (MCMC) variability within the interpretation software STRmix compared to other sources of variability in forensic DNA profiling, including PCR, capillary electrophoresis load and injection, and the makeup of allele frequency databases.
Abstract
              The MCMC variability within STRmix was shown to be the smallest source of variability in this process. Recently there has been a drive towards standardization of forensic DNA interpretation methods resulting in the uptake of probabilistic interpretation software. Some of these software solutions use MCMC. They will not produce an identical answer after repeat interpretations of the same evidence profile because of the Monte Carlo aspect. This is a new source of variability within the forensic DNA analysis process. (Publisher abstract modified)
      
  
          Additional Details
Grant Number(s)
        2011-DN-BX-K541
                                2014-DN-BX-K028


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  Publication Type
        Research (Applied/Empirical)
                                Report (Study/Research)
                                Report (Grant Sponsored)


  
  
        
  Award
        Population Genetic Issues for Forensic DNA Profiles
                                Population Genetic Issues for Forensic DNA Profiles
    
  
  
Date Published: January 1, 2015
    
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