"DNA Contamination in Crime Scene Investigations: Common Errors, Best Practices, And Insights from a Survey Study"
Year: 2024
Type: article
Abstract: The accurate handling of DNA evidence is essential to the success of criminal investigations and the integrity of the justice system. DNA contamination, resulting from improper crime scene procedures or laboratory practices, can severely compromise the quality of evidence, leading to wrongful convictions or acquittals. This review examines the common errors that contribute to DNA contamination in crime scene investigations and provides recommendations for best practices to mitigate these risks. Key areas of focus include errors during crime scene handling, evidence collection, packaging, transportation, and laboratory processing. The review also addresses the unique challenges posed by Touch DNA, a highly sensitive form of evidence that is particularly susceptible to contamination. Realworld case studies are presented to illustrate the legal and forensic consequences of DNA contamination, offering practical lessons for professionals in the field. In addition, the review features insights from a survey study titled "Crime Scene Personnel Perspectives on DNA Contamination: Survey Insights." This study gathers input from newly recruited and well-trained crime scene personnel, highlighting their perspectives on the most critical errors and their impact on forensic investigations. The findings underscore the importance of continuous training, strict enforcement of forensic protocols, and the implementation of preventive measures at all stages of the forensic process. The review concludes with a comprehensive set of best practices aimed at preventing DNA contamination, emphasizing the need for ongoing education, advanced technologies, and rigorous adherence to standardized protocols. By addressing these common challenges, forensic professionals can improve the reliability of DNA evidence and uphold the integrity of the criminal justice system.
Author: Salem K Alketbi
Institution: University of Lancashire
Language: English
Subfield: Genetics
Domain: Life Sciences
Open Access status: diamond
OpenAlex ID: W4403773270