Score-based Likelihood Ratios Using Stylometric Text Embeddings
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
Statistics and its Applications in Forensic Science and the Criminal Justice System
This presentation is from the 2024 Joint Statistical Meetings (JSM), Portland, Oregon, August 3-8, 2024.
Algorithmic matching of striated tool marks
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
Silencing the Defense Expert
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,
A reproducible pipeline for extracting representative signals from wire cuts
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
An algorithm for forensic toolmark comparisons
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.
Challenges in Modeling, Interpreting, and Drawing Conclusions from Images as Forensic Evidence
When a crime is committed, law enforcement directs crime scene experts to obtain evidence that may be pertinent to identifying the perpetrator(s). Much of this evidence comes in the form
A preliminary study of the manufacturing of breech faces
Firearm examiners may face challenges with subclass characteristics. Subclass characteristics have the potential to be confused with individual characteristics if a careful analysis for the presence of subclass characteristics is
Aligning Shoeprint Images that have nonlinear distortion effects
Shoeprints are aligned before assessing similarity, and automatic alignment algorithms can handle differences in translation, rotation [1], and scale. But shoeprints recorded at a crime scene may be partials photographed
Is it a True Match? Top k correlations in a database search
This presentation is from the 76th Annual Conference of the American Academy of Forensic Sciences (AAFS), Denver, Colorado, February 19-24, 2024.