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The decision to call a rebuttal expert witness depends on the particulars of the prosecutor's case and the defense's assertions. The prosecutor may want to call a rebuttal expert witness if the defense makes arguments, suggestions, or presents evidence of one or more of the following issues concerning the DNA typing:
- Contamination
- Degradation
- Planted or switched DNA
- Qualifications of the DNA analyst
- Failed proficiency testing by DNA analyst
- Error rates
- Database challenges
- Catch all
Date Created: June 26, 2023
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