DNA in Sexual Assault Cases Part 1: An Introductory-DNA in SA Cases P1 5.11.23

Video Transcription

Video Summary

The webinar discussed the importance of DNA analysis in sexual assault cases and the collaboration between forensic nurses and forensic scientists. It emphasized the significance of trauma-informed services to survivors and the role of forensic evidence collection. The basics of DNA analysis were explained, including terms like trace DNA, STR DNA, and Y-STR DNA. The process of DNA extraction, amplification, and analysis was discussed, along with laboratory protocols to prevent contamination. The eligibility criteria for submitting DNA profiles into CODIS were highlighted, and the use of DNA databases for perpetrator identification and case linkage was mentioned. The selection of samples and decision points in the DNA analysis process were also touched upon. The webinar stressed the importance of collaboration between forensic nurses and scientists in sexual assault investigations.<br /><br />The webinar focused on the process of DNA analysis in crime labs. The steps involved in the analysis were explained, including DNA sample collection, extraction, amplification, electrophoresis, and data analysis. Contamination prevention and sample integrity were emphasized, along with the use of probabilistic genotyping for complex DNA mixtures. The limitations of working with trace DNA were discussed, and CODIS was mentioned as a database for matching DNA profiles. Overall, the webinar provided an overview of the DNA analysis process and highlighted the techniques used by forensic laboratories.

Keywords

DNA analysis

sexual assault cases

forensic nurses

forensic scientists

trauma-informed services

forensic evidence collection

trace DNA

STR DNA

Y-STR DNA

CODIS

perpetrator identification

probabilistic genotyping