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.
Knowledge Transfer
Found 304 Results
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The q–q Boxplot
Type: Publication Research Area(s): Forensic Statistics
Published: 2021 | By: Jordan Rodu
Boxplots have become an extremely popular display of distribution summaries for collections of data, especially when we need to visualize summaries for several collections simultaneously. The whiskers in the boxplot show only the extent of the tails for most of…
A Study in Reproducibility: The Congruent Matching Cells Algorithm and cmcR Package
Type: Publication Research Area(s): Firearms and Toolmarks
Published: 2023 | By: Joseph Zemmels
Scientific research is driven by our ability to use methods, procedures, and materials from previous studies and further research by adding to it. As the need for computationally-intensive methods to analyze large amounts of data grows, the criteria needed to…
Forensic Science in Legal Education
Type: Publication Research Area(s): Training and Education
Published: 2021 | By: brandon Garrett
In criminal cases, forensic science reports and expert testimony play an increasingly important role in adjudication. More states now follow a federal reliability standard, following Daubert v. Merrell Dow Pharmaceuticals and Rule 702, which call upon judges to assess the…
The Contribution of Forensic and Expert Evidence to DNA Exoneration Cases: An Interim Report
Type: Publication,Reports Research Area(s): DNA,Forensic Statistics,Implementation and Practice
Published: 2023 | By: Simon Cole
This report is from Simon A. Cole, Vanessa Meterko, Sarah Chu, Glinda Cooper, Jessica Weinstock Paredes, Maurice Possley, and Ken Otterbourg (2022), The Contribution of Forensic and Expert Evidence to DNA Exoneration Cases: An Interim Report (National Registry of Exonerations…
How Minutiae Frequency is Perceived and Used by Fingerprint Analysts in the Evaluation of Fingerprint Evidence
Type: Presentation Slides Research Area(s): Latent Print
Published: 2023 | By: Adele Quigley-McBride
Analysts consider the appearance, placement, and number of features within a fingerprint pattern (called minutiae) that correspond when deciding whether two fingerprints originated from the same person. Little is known about the actual base rates for different minutiae. That said,…
Likelihood ratios for categorical count data with applications in digital forensics
Type: Publication Research Area(s): Digital,Forensic Statistics
Published: 2022 | By: Rachel Longjohn
We consider the forensic context in which the goal is to assess whether two sets of observed data came from the same source or from different sources. In particular, we focus on the situation in which the evidence consists of…
CSAFE Project Update & ASCLD FRC Collaboration
Type: Presentation Slides Research Area(s): Digital,Firearms and Toolmarks,Footwear,Forensic Statistics,Handwriting,Implementation and Practice
Published: 2022 | By: Jeff Salyards
This presentation highlighted CSAFE's collaboration with the ASCLD FRC Collaboration Hub.
Reliability for Binary and Ordinal Data in Forensics
Type: Presentation Slides Research Area(s): Forensic Statistics
Published: 2022 | By: Hina Arora
Black-box studies are a crucial part of assessing the accuracy and reliability of subjective decisions in forensics. The extant black-box studies have generally had two components. In the first study, examiners are asked to assess forensic samples (typically questioned and…
Uncertainty in probabilistic genotyping of low template DNA: A case study comparing STRMix™ and TrueAllele™
Type: Publication Research Area(s): DNA,Forensic Statistics
Published: 2023 | By: William Thompson
Two probabilistic genotyping (PG) programs, STRMix™ and TrueAllele™, were used to assess the strength of the same item of DNA evidence in a federal criminal case, with strikingly different results. For STRMix, the reported likelihood ratio in favor of the…
Understanding forensic decision-making with Item Response Theory: Using a NFI firearms study
Type: Presentation Slides Research Area(s): Forensic Statistics,Implementation and Practice
Published: 2022 | By: Amanda Luby
This presentation is from the Forensic Big Data Colloquium at the Netherlands Forensic Institute, November 2022. Posted with permission of CSAFE.
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