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CSAFE’s Latest Resources

Change cannot happen without community. CSAFE is passionate about achieving its mission to apply a statistically sound and scientifically solid foundation to the interpretation of forensic evidence. To that end, we invite fellow scientists and researchers, along with those in the forensic and legal communities, to use and share these resources as we work together to elevate forensic science and technology.

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Advancing the Understanding of 3D Imaging for Firearms Identification

Type: Research Area(s):

Published: 2024 | By: Melissa Nally

Houston Forensic Science Center, in collaboration with CSAFE, has been awarded an NIJ grant to conduct a study focused on comparability of images acquired by 3D instruments manufactured by different vendors. The vendors participating in this study are Cadre (TopMatch),…

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Computational Shoeprint Analysis for Forensic Science

Type: Research Area(s):

Published: 2024 | By: Samia Shafique

Shoeprints are a common type of evidence found at crime scenes and are regularly used in forensic investigations. However, their utility is limited by the lack of reference footwear databases that cover the large and growing number of distinct shoe…

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Score-based Likelihood Ratios Using Stylometric Text Embeddings

Type: Research Area(s): ,

Published: 2024 | By: Rachel Longjohn

We consider the problem setting in which we have two sets of texts in digital form and would like to quantify our beliefs that the two sets of texts were written by the same author versus by two different authors.…

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How do Labs Ensure Quality? A Nationwide Review of SOPs for Latent Print Examination

Type: Research Area(s): ,

Published: 2024 | By: Brett Gardner

This presentation is from the 108th International Association for Identification (IAI) Annual Educational Conference, Reno, Nevada, August 11-17, 2024. Posted with permission of CSAFE.

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Statistics and its Applications in Forensic Science and the Criminal Justice System

Type: Research Area(s): ,

Published: 2024 | By: Alicia Carriquiry

This presentation is from the 2024 Joint Statistical Meetings (JSM), Portland, Oregon, August 3-8, 2024.

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Algorithmic matching of striated tool marks

Type: Research Area(s): ,

Published: 2024 | By: Yuhang Lin

Automatic matching algorithms for assessing the similarity between striation marks have been investigated for bullet lands and some tool marks, such as screwdrivers. We are interested in the investigation of how well tools can be identified by marks left on…

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Silencing the Defense Expert

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Published: 2024 | By: Jeff Salyards

In the wake of the 2009 NRC and 2016 PCAST Reports, the Firearms and Toolmark (FATM) discipline has come under increasing scrutiny. Validation studies like AMES I, Keisler, AMES II, Best & Gardner, and Guyll have provided important information about…

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Developing a Repeatable and Reproducible Protocol for Establishing Combined Minutiae Frequencies

Type: Research Area(s): ,

Published: 2024 | By: Adele Quigley-McBride

Fingerprint minutia types influence LPEs’ analyses and evaluations during casework, with features perceived as rarer generally given more weight. Last year, we reported on examiner perceptions of minutia type frequency. This year, we present the next phase of our research.…

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A reproducible pipeline for extracting representative signals from wire cuts

Type: Research Area(s): ,

Published: 2024 | By: Yuhang Lin

We propose a reproducible pipeline for extracting representative signals from 2D topographic scans of the tips of cut wires. The process fully addresses many potential problems in the quality of wire cuts, including edge effects, extreme values, trends, missing values,…

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An algorithm for forensic toolmark comparisons

Type: Research Area(s): ,

Published: 2024 | By: Maria Cuellar

Forensic toolmark analysis traditionally relies on subjective human judgment, leading to inconsistencies and lack of transparency. The multitude of variables, including angles and directions of mark generation, further complicates comparisons. To address this, we first generate a dataset of 3D…

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