This summary highlights policing-related resources that have been added to the NPL collection in the last week.
Inc. Bullet Ricochet; Explosive traces; Image Forgery Detection; Postmortem Submersion Interval.
Dawson, H. et al. 2025. DNA analysts' experiences with human factors: A quantitative and qualitative snapshot. Journal of Forensic Sciences.
“To address this gap, we surveyed a national sample of forensic DNA analysts using Likert‐scale and open‐ended questions about cognitive bias, courtroom testimony, and related research and training needs.”
DeNapoli, J. and Prada-Tiedemann, P. 2025. Evaluation of composition C‐4 odor signature on a novel sorption training aid substrate. Journal of Forensic Sciences.
“This study utilized Getxent polymer technology for the creation of Composition C‐4 training aid material. The objectives of this research were to (1) evaluate target volatile odor concentration emitted from tubes following mass (1 g, 10 g, and 20 g) and impregnation time (24 h, 72 h, and 1 week) variations and (2) monitor training aid shelf‐life over a period of up to 4 months.”
Gamage, C. et al. 2025. Ricochet of 9‐mm luger bullets off plywood, medium‐density fiberboard, and melamine board: An empirical investigation in aid of shooting reconstruction. Journal of Forensic Sciences.
“This empirical‐based ricochet study presents exciting findings about the ricochet behavior of 9‐mm luger bullets with the three most popular engineered wood types present in modern society: plywood, melamine, and medium‐density fiberboard (MDF).”
Radhakrishnan, A. et al. 2025. Exploring machine learning approaches for efficient image forgery detection. Journal of Forensic Sciences.
“Detecting alterations is crucial for maintaining trust in visual content. A robust system capable of detecting various types of image forgeries, such as copy‐move, splicing, and object removal, while minimizing false positives and negatives.”
Rose, S. et al. 2025. Testing the efficacy of surface swab sampling to determine postmortem submersion interval, using the microbiome colonization of skeletal remains. Journal of Forensic Sciences.
“This study investigates the use of bone surface swabbing as an effective alternative method that minimizes time and resources required for bone sampling and provides a highly replicable method for decomposition studies”
Winder, R. et al. 2025. A survey of explosive traces in public places. Journal of Forensic Sciences.
“This study builds on previous work and studies the contemporary prevalence of organic high explosives and inorganic ions of explosives significance in public places.”
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