Forensic sciences

This video, a presentation by Gregory Dutton, Ph.D., is one of 12 from the recorded at the Firearm and Toolmarks Policy and Practice Forum hosted by the NIJ Forensic Technology Center of Excellence January 11–14, 2022. The symposium included presentations and panel discussions on topics relevant to recent advances in firearm and toolmark examination with a focus on the future. 

This video is one of 12 from the recorded at the Firearm and Toolmarks Policy and Practice Forum hosted by the NIJ Forensic Technology Center of Excellence January 11–14, 2022.  Included are welcome message and keynote presentation "A Review of Scientific Foundations of Firearm Examination and Related Research," Theodore Vorburger, National Institute of Standards and Technology. The symposium included presentations and panel discussions on topics relevant to recent advances in firearm and toolmark examination with a focus on the future. 

This video is one of 12 from the recorded at the Firearm and Toolmarks Policy and Practice Forum hosted by the NIJ Forensic Technology Center of Excellence January 11–14, 2022. Day 1 focused on Scientific Foundation and the State of Firearms and Toolmark Research. 

Presentations include:

Plastic bags are present in many criminal cases. Analyzing these bags in a forensic case can sometimes identify the manufacturer. More importantly, forensic comparison of bags from a known box or other known source can determine whether the bag could have originated from that source. This webinar discusses the manufacturing process, class and randomly acquired characteristics, examination techniques, and comparisons between questioned and known bags. The final segment includes a discussion of recent research in this area, followed by a question-and-answer period.

When working within a coroner or medical examiner’s office, engaging with the bereaved is a daily task. While this task can sometimes feel monotonous or routine, this webinar challenges this myth and shows that it should be anything but. It provides insight on the importance of a trauma informed approach to supporting all grieving individuals. It discusses the value of collaborating with trained professionals, such as victim advocates, and lessons learned from the presenters’ combined years of experience working with people experiencing trauma.

This session busts the myth that new toxicology screening tools can fully replace traditional toxicology testing. The session discusses the appropriate integration of current rapid toxicology screening tools into MEC offices as a method of triaging cases, rather than a determination of toxicology related causes of deaths.

Former medicolegal death investigators highlight the mental health challenges faced by medicolegal death investigation professionals, particularly the effects of indirect trauma. By sharing personal experiences, research data, and practical strategies, they aim to raise awareness about early signs of PTSD, stress, and burnout. Emphasizing the importance of resilience, community support, and vulnerability, the presentation encourages fostering trauma-informed workplaces and prioritizing wellness, including practical strategies.

Identification of novel psychoactive substances (NPS) based on comparisons of electron-ionization (EI) mass spectra continues to pose challenges in seized drug analysis. In this webinar, a method to statistically compare EI mass spectra is described, and an application of the method to distinguish several structural and positional isomers of NPS analogs are demonstrated.

This webinar was hosted by the NIJ Forensic Technology Center of Excellence on July 25, 2024. 

The Bureau of Justice Statistics (BJS) conducts the Census of Publicly Funded Forensic Crime Laboratories (CPFFCL) to provide insight into federal, state, county, and municipal crime labs that are funded solely by the government or whose parent organization is a government agency. The most recent CPFFCL provides national-level data on the workload and operations of crime labs during 2020. Of the 326 eligible crime labs and multilab systems in the 2020 CPFFCL, 293 (90%) provided responses to at least some of the survey questions.

This presentation explores a series of research studies aimed at assessing the accuracy, repeatability, and reproducibility of forensic pattern evidence examination decisions across various disciplines, including latent prints, firearms, shoeprints, and handwriting.  Key topics covered include a comprehensive overview of the design factors in these four large-scale research studies, as well as a response to common critical observations regarding the experimental design and the interpretation of results.

This webinar provides a means and rationale to prepare and execute the various steps of this process, including planning, gap analysis, educating key staff members, executing and delivering work products. The webinar introduces the process of standards implementation stepwise for key senior administrators whose laboratory system has not yet formally initiated a program.

This presentation by Julie Valentine, Brigham Young University, is one of 16 videos related to the Virtual Workshop: A Discussion on Research and a Multidisciplinary Response to Sexual Assault, which was hosted by the NIJ Forensic Technology Center of Excellence January 26-27, 2022. 

This is one of 16 videos related to the Virtual Workshop: A Discussion on Research and a Multidisciplinary Response to Sexual Assault, which was hosted by the NIJ Forensic Technology Center of Excellence January 26-27, 2022. 

This presentation by Matthew Gametter, Idaho State Police Forensic Services, is one of 16 videos related to the Virtual Workshop: A Discussion on Research and a Multidisciplinary Response to Sexual Assault, which was hosted by the NIJ Forensic Technology Center of Excellence January 26-27, 2022.