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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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Latent print quality in blind proficiency testing: Using quality metrics to examine laboratory performance

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Published: 2021 | By: Brett O. Gardner

Calls for blind proficiency testing in forensic science disciplines intensified following the 2009 National Academy of Sciences report and were echoed in the 2016 report by the President’s Council of Advisors on Science and Technology. Both practitioners and scholars have…

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Judges and forensic science education: A national survey

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Published: 2021 | By: Brandon L. 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, which calls upon judges to assess the reliability and validity of scientific evidence. Little is known…

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Science Bench Book for Judges: Section 4 Introduction to Statistical Thinking for Judges

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Published: 2020 | By: Alicia Carriquiry

Alicia Carriquiry, the director of the Center for Statistics and Applications in Forensic Evidence (CSAFE), and Eryn Blagg, a doctoral student in statistics at Iowa State University, wrote a section on statistics for the newly released second edition of the…

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Using mixture models to examine group difference among jurors: an illustration involving the perceived strength of forensic science evidence

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Published: 2021 | By: Naomi Kaplan-Damary

The way in which jurors perceive reports of forensic evidence is of critical importance, especially in cases of forensic identification evidence that require examiners to compare items and assess whether they originate from a common source. The current study discusses…

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Battling to a draw: Defense expert rebuttal can neutralize prosecution fingerprint evidence

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Published: 2021 | By: Gregory Mitchell

The present study examined whether a defense rebuttal expert can effectively educate jurors on the risk that the prosecution's fingerprint expert made an error. Using a sample of 1716 jury-eligible adults, we examined the impact of three types of rebuttal…

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Recognition of Overlapping Elliptical Objects in a Binary Image

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Published: 2021 | By: Tong Zou

Recognition of overlapping objects is required in many applications in the field of computer vision. Examples include cell segmentation, bubble detection and bloodstain pattern analysis. This paper presents a method to identify overlapping objects by approximating them with ellipses. The…

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CSAFE 2021 Field Update

CSAFE 2021 Field Update

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The 2021 Field Update was held June 14, 2021, and served as the closing to the first year of CSAFE 2.0. CSAFE brought together researchers, forensic science partners and interested community members to highlight the organization’s achievements, identify areas for…


Computer program source code on computer screen

Algorithms in Forensic Science: Challenges, Considerations, and a Path Forward

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This CSAFE webinar was held on May 25, 2021. Presenter: Henry Swofford Ph.D. Candidate – University of Lausanne Presentation Description: Over the years, scientific and legal scholars have called for the implementation of algorithms (e.g., statistical methods) in forensic science…


Mt. Everest—we are going to lose many: a survey of fingerprint examiners’ attitudes towards probabilistic reporting

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Published: 2021 | By: H. Swofford

Over the past decade, with increasing scientific scrutiny on forensic reporting practices, there have been several efforts to introduce statistical thinking and probabilistic reasoning into forensic practice. These efforts have been met with mixed reactions—a common one being scepticism, or…

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Assessing Footwear Examiner Performance

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This CSAFE webinar was held on May 13, 2021. Presenter: Corey Katz Graduate Researcher, University of California, Irvine Presentation Description: There has recently been increased attention on the reliability and validity of methods used in the analysis of forensic evidence.…


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