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These are cases in which biological evidence still exists. Results of DNA testing may provide additional, albeit inconclusive, information as to guilt or innocence.
Example: Petitioner is presently incarcerated for a multiple-assailant rape. The victim testified that seven perpetrators were involved but is uncertain whether all actually engaged in sexual intercourse. If vaginal swabs that were preserved are tested and petitioner's DNA profile is not found, the significance of the results will be minimal because they may not significantly undermine confidence in the outcome of the proceedings. It should be noted that if other participants in the rape can be identified through DNA testing and the petitioner can show the unlikelihood that he ever had contact/association with the other participants, this case may fall into category 1 or 2.
Additional Online Courses
- What Every First Responding Officer Should Know About DNA Evidence
- Collecting DNA Evidence at Property Crime Scenes
- DNA – A Prosecutor’s Practice Notebook
- Crime Scene and DNA Basics
- Laboratory Safety Programs
- DNA Amplification
- Population Genetics and Statistics
- Non-STR DNA Markers: SNPs, Y-STRs, LCN and mtDNA
- Firearms Examiner Training
- Forensic DNA Education for Law Enforcement Decisionmakers
- What Every Investigator and Evidence Technician Should Know About DNA Evidence
- Principles of Forensic DNA for Officers of the Court
- Law 101: Legal Guide for the Forensic Expert
- Laboratory Orientation and Testing of Body Fluids and Tissues
- DNA Extraction and Quantitation
- STR Data Analysis and Interpretation
- Communication Skills, Report Writing, and Courtroom Testimony
- Español for Law Enforcement
- Amplified DNA Product Separation for Forensic Analysts