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Evaluation of suspected drug‐facilitated sexual assault cases in the city of Houston from...
Drug‐facilitated sexual assault is a form of sexual violence against an individual incapacitated by alcohol and/or drugs consumed voluntarily or covertly administered. The purpose of this study was to evaluate toxicological results and the associated demographics of sexual assaul...
Introducing AAFS TV
Lack of fermentation in antemortem blood samples stored unstoppered in various locations
A common defense challenge when antemortem blood ethanol results are presented at trial is the assertion that ethanol was formed in the blood tube after the blood draw through fermentation of the blood glucose by Candida albicans (C. Albicans). In contrast, decades of research in...
Academy Aperçus—October 2022
Multimedia stream hashing: A forensic method for content verification
Forensic examination of digital audio, video, and images frequently requires transforming multimedia data from one format to another. The transformative activity may cause changes to the administrative elements of the file but leave the multimedia streams unchanged and intact. Ho...
Y‐STR mixture deconvolution by single‐cell analysis
Since Y‐STR typing only amplifies male Y chromosomal DNA, it can simplify the interpretation of some DNA mixtures that contain female DNA. However, if there are multiple male contributors, mixed Y‐STR DNA profiles will often be obtained. Y‐STR mixture analysis cases are particula...
Accuracy of comparison decisions by forensic firearms examiners
This black box study assessed the performance of forensic firearms examiners in the United States. It involved three different types of firearms and 173 volunteers who performed a total of 8640 comparisons of both bullets and cartridge cases. The overall false‐positive error rate...
Y‐STR mixture deconvolution by single‐cell analysis
Since Y‐STR typing only amplifies male Y chromosomal DNA, it can simplify the interpretation of some DNA mixtures that contain female DNA. However, if there are multiple male contributors, mixed Y‐STR DNA profiles will often be obtained. Y‐STR mixture analysis cases are particula...
Accuracy of comparison decisions by forensic firearms examiners
This black box study assessed the performance of forensic firearms examiners in the United States. It involved three different types of firearms and 173 volunteers who performed a total of 8640 comparisons of both bullets and cartridge cases. The overall false‐positive error rate...
Standards Checklists Now Online
A TikTok™ “Benadryl Challenge” death—A case report and review of the literature
TikTok™, a social media platform popular with teenagers and young adults, hosts a variety of short‐form user videos with durations from 15 s to 10 min. Among these videos are potentially dangerous "challenges," such as the "Skull Breaker" challenge and the &qu...
Toxicology Section News for AAFS 2023
Age prediction by methylation analysis of small amounts of DNA using locked nucleic acids
Age prediction based on methylation analysis has been reported in many populations, with 10 ng or more of DNA usually required for each determination. In this study, we designed thermostable locked nucleic acid (LNA) primers by replacing a small number of DNA bases in standard DN...
Examination of the possibility to use Siamese networks for the comparison of firing pin...
One of the most discussed issues in forensic firearms identification is the subjectivity of conclusions. The main part of firearms examiners' work is to make a microscopic comparison of the marks on cartridge cases and bullets. In this process, examiners have to decide if th...
The Diversity Outreach Committee
The American Academy of Forensic Sciences Diversity Outreach Committee (DOC) shall promote diversity in the Academy and the forensic science community by nurturing a culture that is welcoming and supportive, and by engaging diverse ideas for the provision of culturally competent ...