Apply our Research in Practice
Individuals in the courtroom, including judges, attorneys, and jury members, are challenged with interpreting the probabilistic evidence provided by new forensic methods. CSAFE is committed to providing up-to-date training to allow the legal community to fairly evaluate and communicate forensic conclusions. Judges, who under Daubert have the role of gate-keepers for the science that gets admitted into evidence in federal (and many) state courts, need specific knowledge to make appropriate decisions on matters of admissibility and expert testimony and to guide jurors in their deliberations when complex technical evidence is presented at trial.
Through collaborations with other national agencies, CSAFE provides legal education offerings at the intersection of forensics, statistics, and law –– both online and in-person –– to promote quantitative literacy among the legal community. Check back regularly for new offerings, and please contact us with any interest in educational collaborations or with questions.
Available Resources
For the Legal Community
Found 118 Results
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Android App Forensic Evidence Database (AndroidAED)
Type: Presentation Slides Research Area(s): Digital
Published: 2020 | By: Chen Shi
After attending this presentation, attendees will better understand how AndroidAED will be beneficial for academic researchers whose studies relate to mobile applications that grant them the ability to search through many of the available applications across various third-party app stores.
A Wild Manhunt for Stego Images Created by Mobile Apps
Type: Presentation Slides Research Area(s): Digital
Published: 2020 | By: Li Lin
As mobile Internet and telecommunication technology develops at high speed, the digital image forensics academic community is facing a growing challenge. • Mobile applications (Apps) allow a user to easily edit/process an image for a variety of purposes. • Thanks…
A database of handwriting samples for applications in forensic statistics
Type: Publication Research Area(s): Handwriting
Published: 2020 | By: Amy Crawford
Handwriting samples were collected from 90 adults for the purpose of developing statistical approaches to the evaluation of handwriting as forensic evidence. Each participant completed three data collection sessions, each at least three weeks apart. At each session, a survey…
Quantifying the association between discrete event time series with applications to digital forensics
Type: Publication Research Area(s): Digital
Published: 2020 | By: Christopher Galbraith
We consider the problem of quantifying the degree of association between pairs of discrete event time series, with potential applications in forensic and cybersecurity settings. We focus in particular on the case where two associated event series exhibit temporal clustering…
Score-based Likelihood Ratios for Camera Device Identification
Type: Presentation Slides Research Area(s): Digital
Published: 2020 | By: Stephanie Reinders
Many areas of forensics are moving away from the notion of classifying evidence simply as a match or non-match. Instead, some use score-based likelihood ratios (SLR) to quantify the similarity between two pieces of evidence, such as a fingerprint obtained…
Algorithm mismatch in spatial steganalysis
Type: Presentation Slides Research Area(s): Digital
Published: 2019 | By: Stephanie Reinders
The number and availability of stegonographic embedding algorithms continues to grow. Many traditional blind steganalysis frameworks require training examples from every embedding algorithm, but collecting, storing and processing representative examples of each algorithm can quickly become untenable. Our motivation for…
Score-based likelihood ratios in device identification
Type: Publication Research Area(s): Digital
Published: 2020 | By: Stephanie Reinders
Many areas of forensics are moving away from the notion of classifying evidence simply as a match or non-match. Instead, some use score-based likelihood ratios (SLR) to quantify the similarity between two pieces of evidence, such as a fingerprint obtained…
Automatic Classification of Bloodstain Patterns Caused by Gunshot and Blunt Impact at Various Distances
Type: Publication Research Area(s): Bloodstain
Published: 2020 | By: Yu Liu
The forensics discipline of bloodstain pattern analysis plays an important role in crime scene analysis and reconstruction. One reconstruction question is whether the blood has been spattered via gunshot or blunt impact such as beating or stabbing. This paper proposes…
Letter to the Editor: Automatic Classification of Bloodstain Patterns
Type: Publication Research Area(s): Bloodstain
Published: 2020 | By: Yu Liu
The forensics discipline of bloodstain pattern analysis plays an important role in crime scene analysis and reconstruction. One reconstruction question is whether the blood has been spattered via gunshot or blunt impact such as beating or stabbing. This paper proposes…
A Robust Approach to Automatically Locating Grooves in 3D Bullet Land Scans
Type: Publication Research Area(s): Firearms and Toolmarks
Published: 2019 | By: Kiegan Rice
Land engraved areas (LEAs) provide evidence to address the same source–different source problem in forensic firearms examination. Collecting 3D images of bullet LEAs requires capturing portions of the neighboring groove engraved areas (GEAs). Analyzing LEA and GEA data separately is…
Processing Stamp Bags for Latent Prints: Impacts of Rubric Selection and Gray-Scaling on Experimental Results
Type: Publication Research Area(s): Latent Print
Published: 2019 | By: B. Barnes
We report data on two open issues in our previous experimentation seeking an effective method for development of latent prints on glassine drug bags: (1) the choice of rubric to assess the quality of fingerprints and (2) the choice of…
What do forensic analysts consider relevant to their decision making?
Type: Publication Research Area(s): Implementation and Practice
Published: 2019 | By: Brett O. Gardner
In response to research demonstrating that irrelevant contextual information can bias forensic science analyses, authorities have increasingly urged laboratories to limit analysts' access to irrelevant and potentially biasing information (Dror and Cole (2010) [3]; National Academy of Sciences (2009) [18];…
Perceptions and estimates of error rates in forensic science: A survey of forensic analysts
Type: Publication Research Area(s): Implementation and Practice
Published: 2019 | By: Daniel C. Murrie
Every scientific technique features some error, and legal standards for the admissibility of scientific evidence (e.g., Daubert v. Merrill Dow Pharmaceuticals, Inc., 1993; Kumho Tire Co v. Carmichael, 1999) guide trial courts to consider known error rates. However, recent reviews…
Latent Print Proficiency Testing: An Examination of Test Respondents, Test-Taking Procedures, and Test Characteristics.
Type: Publication Research Area(s): Latent Print
Published: 2019 | By: Brett O. Gardner
Proficiency testing is a key component of quality assurance programs within crime laboratories and can help improve laboratory practices. However, current proficiency testing procedures contain significant limitations and can be misinterpreted by examiners and court personnel (Garrett & Mitchell, 2018).…
StegoAppDB: A steganography apps forensics image database
Type: Publication Research Area(s): Digital
Published: 2019 | By: Jennifer Newman/J. Newman presented
In this paper, we present a new reference dataset simulating digital evidence for image (photographic) steganography. Steganography detection is a digital image forensic topic that is relatively unknown in practical forensics, although stego app use in the wild is on…
Accounting for individual differences among decision-makers with applications to the evaluation of forensic evidence
Type: Publication Research Area(s): Latent Print
Published: 2019 | By: Amanda Luby
Forensic science often involves the comparison of crime-scene evidence to a known-source sample to determine if the evidence arose from the same source as the reference sample. Common examples include determining if a fingerprint or DNA was left by a…
Implementation of a Blind Quality Control Program in Blood Alcohol Analysis
Type: Publication Research Area(s): Implementation and Practice
Published: 2019 | By: Jackeline Moral
Declared proficiency tests are limited in their use for testing the performance of the entire system, because analysts are aware that they are being tested. A blind quality control (BQC) is intended to appear as a real case to the…
Statistical Analysis of Handwriting for Writer Identification
Type: Presentation Slides Research Area(s): Handwriting
Published: 2019 | By: Amy Crawford
This presentation overviews the use of a statistical model to provide probabilistic statements of writership for handwritten documents.
A semi-automated algorithm to quantify similarity between outsole impressions using SURF
Type: Presentation Slides Research Area(s): Footwear
Published: 2019 | By: Alicia Carriquiry
Footwear examiners are tasked with comparing an outsole impression (Q) left at a crime scene with an impression (K) from a database or from the suspect's shoe. We propose semi-automated algorithm, MC-COMP-SURF, for comparing two shoe outsole impressions, that relies…
Statistical Thinking for Forensic Practitioners
Type: Presentation Slides Research Area(s): Training and Education
Published: 2019 | By: Hal Stern
The field of statistics is concerned with the collection, display, analysis, interpretation, and reporting of quantitative data. Statistics has emerged as a critical topic in ongoing discussions regarding the practice of forensic science. The workshop provides an overview of probability…
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