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Principles of Forensic DNA for Officers of the Court

Functions of the Defense Expert (cont.)

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  • Prepare defense counsel for challenging or presenting the DNA evidence.
  • Offer testimony at trial to address the accuracy or significance of the statistical probability testimony.
  • Present exculpatory DNA evidence testimony.
  • Address shortcomings of any newer DNA procedure, either at a pretrial hearing to determine admissibility or at trial.
  • Help defense counsel inform the client of the weight and significance of the government evidence prior to trial and thereby permit an informed decision on whether to have a trial or enter a plea. 25

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