Impression & Pattern Evidence

All of our webinars, reports, podcast episodes, and other educational resources are available to the public at no cost.

Funding for the Forensic Technology Center of Excellence has been provided by the National Institute of Justice.

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Evaluation of Purdue University’s 3D Imaging Prototype for Footwear and Tire Impressions

Date September 2022 Overview Supported by two National Institute of Justice (NIJ) awards (2016-DN-BX-0189 and 2019-R2- CX-0069), Dr. Song Zhang and his research team at Purdue University led the development of a fully automated 3D imaging system for footwear and…

2022 National Forensic Science Week FTCoE Student Research Poster Session

← Back to Main Page Overview Thursday, September 22, 2022 | Posters will be available at 1:00 PM Eastern Welcome to our virtual poster session! As fall semester begins and in honor of National Forensic Science Week (September 18-24, 2022),…
question marks and silhouettes

2022 National Forensic Science Week Ask an Expert

← Back to Main Page Overview The FTCoE has conducted a variety of written interviews with forensic professionals in various forensic science disciplines. From digital evidence to trace analysis and medicolegal death investigation to DNA analysis, the FTCoE showcases real-world…

2022 Update: 3D Imaging Technologies and Virtual Comparison Microscopy for Firearms Examination, A Landscape Study

Date August 2022 Overview The National Institute of Justice’s (NIJ) Forensic Technology Center of Excellence (FTCoE), led by RTI International, provides resources that promote the use of technologies in the forensic community. This report is an update to a 2016…

Terrestrial LiDAR Scanners: Guidelines for Use in Criminal Justice Applications

This webinar originally occurred on May 3, 2022Duration: 1 hour Overview Terrestrial LiDAR scanning devices (also known as terrestrial laser scanning devices, TLS) acquire complex geometric data that capture a three-dimensional representation of a scene. This technology can be used…

Guidelines for the Use of Terrestrial LiDAR Scanners in Criminal Justice Applications

Date March 2022 Overview Terrestrial LiDAR scanning devices (also known as terrestrial laser scanning devices, TLS) acquire complex geometric data that capture a three-dimensional representation of a scene; this technology is used in criminal justice applications such as documenting a…
brain, DNA, bloodstain

Human Factors in Forensic Science Practice Sourcebook

Publication Forensic Science International: Synergy, March 2022 Editors Heidi Eldridge, PhD | RTI International Barbara A. Spellman, JD, PhD | University of Virginia School of Law Thomas Busey, PhD | Indiana University, Psychological and Brain Sciences Working Group Members Paul…

U.S. National Footwear Database System Feasibility Study

This webinar originally occurred on February 15, 2022. Duration: 1 hour Overview Shoeprints at crime scenes, along with suspects’ footwear, are routinely collected and analyzed by qualified examiners in crime laboratories and forensic units to identify, include, or exclude suspects’…
gun & evidence

A Unique Approach to a Crime Gun Intelligence Center with the Inclusion and Support of 3D Virtual Comparison Technologies

This webinar originally occurred on February 10, 2022. Duration: 1 hour and 30 minutes Overview Any effective Crime Gun Intelligence Program relies on the expeditious processing of firearms-related evidence to achieve the goal of intelligence led firearms-based investigations. The possible…
microphone and headphones

Just Advanced Capabilities in Firearm and Toolmark Analysis

Original Release Date: December 3, 2021 In this special release episode, Just Science sat down with Nicole Jones, the Director of the Forensic Science Translation and Implementation Program in the Center for Forensic Sciences at RTI International, and John Grassel,…
fingerprints

Success Story: LatentSleuth: A Case Study on the Impact of Federal R&D Funding

National Institute of Justice and the Latent Print Research Community Date December 2021 Overview The development of technologies to improve the objective collection, analysis, and interpretation of evidence is driven by the multiple stakeholders that make up the forensic science…
ammo

Two-Pronged Study of Bullets Fired by Consecutively Rifled Barrels

← Back to Firearm and Toolmarks Webinar Series This webinar originally occurred on December 16th, 2021 Duration: 1 hour The 2016 President’s Council of Advisors on Science and Technology (PCAST) Report brought forensics, and specifically firearms identification, into the spotlight…
firearm & Ammo

Glock Pistol Toolmarks: A Literature Review and Introduction of Undocumented Toolmarks

← Back to Firearm and Toolmarks Webinar Series This webinar originally occurred on December 14th, 2021 Duration: 1 hour Glock pistols are well known for their generally distinctive class characteristics and the numerous toolmarks that they create on fired cartridge…
ammo

FLN-TWG: 3D Imaging for Firearms and Toolmarks

← Back to FLN-TWG Main Page  Forensic Laboratory Needs Technology Working Group (FLN-TWG) The National Institute of Justice (NIJ), in partnership with the Forensic Technology Center of Excellence (FTCoE) at RTI International, formed the Forensic Laboratory Needs Technology Working Group…
US and forensic science disciplines

2021 Forensic Science Research Federal Stakeholders Public Meeting

Overview The National Institute of Justice (NIJ) and the National Institute of Standards and Technology (NIST), in partnership with the Forensic Technology Center of Excellence (FTCoE), held a Forensic Science Research Federal Stakeholders meeting on November 8, 2021 from 9:00AM…
latent print and DNA

DNA recovery after sequential processing of latent fingerprints on copy paper

Publication Journal of Forensic Sciences, September 2021 Authors Abigail S. Bathrick, M.F.S. | Bode Technology, Lorton, VA Sarah Norsworthy, M.S. | Forensic Technology Center of Excellence, RTI International, Durham, NC Dane T. Plaza, B.S. | Bode Technology, Lorton, VA Mallory…
question marks and silhouettes

2021 National Forensic Science Week Practitioner Interviews

← Back to Main Page Overview The FTCoE has conducted a variety of written interviews with forensic professionals in various stages of their careers. From recent graduates to retired professionals, the FTCoE showcases real-world perspectives on the current state of…

2021 National Forensic Science Week FTCoE Student Research Poster Session

← Back to Main Page Overview  As fall semesters are getting back into session and in honor of the upcoming National Forensic Science Week (September 19-25, 2021), the Forensic Technology Center of Excellence (FTCoE) would like to highlight student research…
A footprint next to a magnifying glass

Footwear Evidence Conclusions: A Discussion of Standards, Recommendations, and Structure

This webinar originally occurred on September 30th, 2021 Duration: 1 hour It can be challenging to write reliable, accurate conclusions that meet the expectations of stakeholders that oversee and use footwear evidence reports. Some of the challenges associated with drafting…
arrows pointing to circle with footwear tread

Image Quality and Clarity: The Keys to Forensic Digital Image Processing

This webinar originally occurred on August 3rd, 2021Duration: 1 hour The ability to accurately and reliably analyze and compare forensic digital images relies on two key elements: image quality and image clarity.  Most forensic examiners understand that resolution plays a…
microphone and headphones

 Just the Impression and Pattern/Trace Evidence Portfolio

Original Release Date: June 11, 2021 In episode two of our 2021 NIJ R&D and Beyond mini season, Just Science sat down with Dr. Gregory Dutton, a physical scientist in the Office of Investigative and Forensic Sciences at the National Institute of Justice, to discuss NIJ’s Impression, Pattern, and Trace…
A digital fingerprint

A Comprehensive Look at LatentSleuth

This webinar originally occurred on June 8th, 2021 Duration: 1 hour LatentSleuth is a novel software toolset designed for (and with direct feedback from) latent print examiners. The toolset includes a small-scale automated fingerprint identification system (AFIS) matcher that leverages a novel matching algorithm…
a firearm with the ASCLD logo

ASCLD Train the Director – Firearms 3D Technology: Advantages and Value for Implementing 3D Technologies 

This webinar originally occurred on June 2nd, 2021 Duration: 1 hour This presentation demonstrated the effectiveness of integrating 3D technology into the forensic firearms/toolmarks discipline and the decision analysis used for selecting samples for virtual comparison.  In 2009, a report…
Bloodstain pattern and a ruler

Lessons Learned from Proficiency Test Results in Bloodstain Pattern Analysis

This webinar originally occurred on April 15th, 2021 Duration: 1 hour The Daubert ruling by the Supreme Court established “the known or potential rate of error” as one of several factors to be used when assessing the scientific reliability or…
microphone and headphones

Just Identifying Fingerprints Through Photographs

In episode six of the Case Studies season, Just Science sat down with Karen Oswald, Senior Evidence Specialist with the Suffolk County Police Department in New York, to discuss methods for identifying fingers and hands captured in evidentiary photos. As cellphone and camera technologies continue…

Terrestrial LiDAR Scanning Working Group for Criminal Justice Applications, First Meeting Report

Report Date July 2020 Introduction On February 27 and 28 of 2020, The National Institute of Justice (NIJ), in partnership with the Forensic Technology Center of Excellence (FTCoE) at RTI International, convened the first meeting of the Terrestrial LiDAR Scanning…
Circle with palm prints in the center

Results of a Black Box Study on the Accuracy and Reliability of Palm Print Comparisons

Thursday, March 12th, 2020 1:00:00 PM ET – 2:00:00 PM ET Duration: 1 hour(s) In 2011, a team of researchers from the FBI and Noblis published in the Proceedings of the National Academy of Sciences the first large-scale black box…

2019 National Institute of Justice Forensic Science Research and Development Symposium

This report was published in RTI Press, a global publisher of peer-reviewed, open-access publications on a broad range of topics. The areas of focus reflect RTI’s multidisciplinary research, our expertise in social and laboratory sciences, and our extensive international activities. Since…
tire treads and shoe print

Portable Advanced 3D Imaging for Footwear and Tire Impression Capture

Wednesday, October 23rd, 2019 2:00 – 3:30 PM ET Duration: 1.5 hour(s) This webinar will explain the principles and capabilities of a fully automated portable system with an easy-to use-graphical user interface (GUI) for shoe and tire impression capture. We…

Juror comprehension of forensic expert testimony: A literature review and gap analysis

Heidi Eldridge Report Date Volume 1, 2019, Pages 24-34 Abstract Forensic scientists and commentators including academics and statisticians have been embroiled in a debate over the best way to present evidence in the courtroom. Various forms of evidence presentation, both quantitative…
old hand holding young hand

Cradle to Cane: Investigation of Crimes Against Vulnerable Victims

Overview: In 2017, the National Institute of Justice, Charleston Southern University, the Forensic Technology Center of Excellence, and the Shaken Baby Alliance worked together to create and host “From Cradle to Cane: Investigation of Crimes Against Vulnerable Victims.” This two-day conference, held in Charleston, SC, focused…
microphone & headset

Identification: Just the Double Loop Podcast Crossover

<<< back to all podcasts Just the Double Loop Podcast Crossover In episode nine of the Identification season, Just Science sits down with Heidi Eldridge, from RTI international, along with Eric Ray and Glenn Langenburg, the co-hosts of the Double Loop Podcast, to discuss the…
microphone & headset

Identification: Just Forensic Technician Vicarious Trauma

<<< back to all podcasts Just Forensic Technician Vicarious Trauma In episode eight of the Identification season, Just Science interviews Selena McKay-Davis, lead senior forensic specialist at Riverside Police Department, about job-related stress for forensic technicians and sworn peace officers.…
microphone & headset

Identification: Just Forensic Microanthropology

<<< back to all podcasts Just Forensic Microanthropology In episode seven of the Identification season, Just Science interviews Carlos Gutierrez, a lecturer at Chaminade University of Honolulu, about the new field of Forensic Microanthropology. After finding an unidentified bone, forensic…

HHRRC – Building Forensic Capacity Post-Conflict: Lessons from Uganda

← Back to Series This webinar originally occurred on March 28, 2019 Duration: 1.5 hours This presentation introduces research conducted in Uganda at the nexus of forensic science and transitional justice, highlighting a large-scale forensic investigation and human identification capacity-building…

Success Story: Advancing 3D Virtual Microscopy for Firearm Forensics

National Institute of Justice and Cadre Forensics Date March 2019 Overview Examining bullets and cartridge cases from crime scenes can help link crimes, moving investigators one step closer to identifying a suspect. Firearm forensic analysis can also link recovered evidence…
microphone & headset

Identification: Just a Modified Direct to DNA Approach to Sexual Assault Kit Testing

<<< back to all podcasts Just a Modified Direct to DNA Approach to Sexual Assault Kit Testing In episode three of the Identification season, Just Science interviews forensic biologist Caitlin Rogers. Forensic scientists are always looking to improve the efficiency…

ASCLD Train the Director – NIBIN Challenges and Opportunities

This webinar originally occurred on January 24th, 2019 Duration: 1 hour This is the first webinar in the ASCLD Train the Director Webinar Series. Crime Gun Intelligence utilizes evidence-based technology to provide law enforcement a unique tool to develop information…

Advancing Research Initiatives and Combatting the Human Trafficking Epidemic

Thursday, November 1, 2018 1:00 PM ET – 2:00 PM ET Duration: 1 hour(s) Trafficking in persons is a multi-faceted global epidemic which has seen a significant increase in public awareness. However, there is a substantial need to expand capacities…

Conference Proceedings: 2018 Impression Pattern and Trace Evidence Symposium

This report was published in RTI Press, a global publisher of peer-reviewed, open-access publications on a broad range of topics. The areas of focus reflect RTI’s multidisciplinary research, our expertise in social and laboratory sciences, and our extensive international activities. Since…

Conference Proceedings: 2018 Research and Development Symposium

This report was published in RTI Press, a global publisher of peer-reviewed, open-access publications on a broad range of topics. The areas of focus reflect RTI’s multidisciplinary research, our expertise in social and laboratory sciences, and our extensive international activities. Since…

Statistical Interpretation Software for Friction Ridge Skin Impressions (FRStat)

REPORT DATE April 2018 REPORT SUMMARY The Defense Forensic Science Center (DFSC) developed FRStat in response to criticisms from legal and scientific commentators on the lack of an empirically demonstrable basis to substantiate conclusions in pattern evidence. This tool is…
microphone & headset

Just Fracture Matches

Just Fracture Matches In episode two of the 2018 IPTES season, Just Science interviews Dr. Ashraf Bastawros from Iowa State University. Dr. Bastawros discusses how fracture mechanics principles can be used with statistical learning tools to give quantitative results. Explore the mind of an engineer and hear how leveraging other disciplines can aid forensic…

2018 IPTES Plenary – Closing Keynote Speaker Adam Benforado

IPTES was designed to bring together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities. This original Live Webinar took place on 01/25/2018. The National Institute of…

2018 IPTES – Impression & Pattern Breakout – Day 2 PM

IPTES was designed to bring together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities. This original Live Webinar took place on 01/25/2018. The National Institute of…

2018 IPTES – Impression & Pattern Breakout Day 2 AM – Part 2

IPTES was designed to bring together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities. This original Live Webinar took place on 01/25/2018. The National Institute of…

2018 IPTES – Impression & Pattern Breakout Day 2 AM – Part 1

IPTES was designed to bring together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities. This original Live Webinar took place on 01/25/2018. The National Institute of…

2018 IPTES – Impression & Pattern Breakout Day 1 PM

IPTES was designed to bring together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities. This original Live Webinar took place on 01/24/2018. The National Institute of…

2018 IPTES Plenary – Statistics & Testimony From Practitioner

IPTES was designed to bring together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities.This original Live Webinar took place on 01/24/2018. The National Institute of Justice…

2016 National Institute of Justice Forensic Science Research and Development Symposium

This report was published in RTI Press, a global publisher of peer-reviewed, open-access publications on a broad range of topics. The areas of focus reflect RTI’s multidisciplinary research, our expertise in social and laboratory sciences, and our extensive international activities. Since…

Conference Proceedings: 2015 Impression, Pattern, and Trace Evidence Symposium

This report was published in RTI Press, a global publisher of peer-reviewed, open-access publications on a broad range of topics. The areas of focus reflect RTI’s multidisciplinary research, our expertise in social and laboratory sciences, and our extensive international activities. Since…

Understanding Basic Statistical Concepts: Fingerprints

Fingerprint conclusions are expert judgments. These specific types of judgments may be more appropriately termed as inferences, or subjective probabilities, where frequency rates have not been able to be calculated. For over a hundred years researchers have attempted to mathematically…

Latent Fingerprints: Reducing Erroneous Exclusions

This presentation discusses reducing erroneous exclusions in latent fingerprints. The exclusion decision is a fairly recent change in latent print comparisons, and the discipline is still struggling with how to handle exclusions. Erroneous exclusions are being discovered with surprising frequency…

2016 NSAPS Panel 2 – Victim-Centered Approaches

The National Institute of Justice, through its Forensic Technology Center of Excellence hosted “Looking Ahead: The National Sexual Assault Policy Symposium” on September 8-9, 2016, in Washington D.C. The audience learned how first responders such as medical staff, victims’ advocates,…

2016 NSAPS Panel 1 – Immediate Aftermath of Sexual Assault

The National Institute of Justice, through its Forensic Technology Center of Excellence hosted “Looking Ahead: The National Sexual Assault Policy Symposium” on September 8-9, 2016, in Washington D.C. This panel provided an overview of how a traumatic event like sexual…

2014 TechBeat Articles Featuring the FTCoE

Short Tandem Repeat Study Released Issue: Nov/Dec 2014 Page: 27 Click here to read the article Magneto-Optical technology shows promise in “Unerasing” Serial Numbers Issue: Sep/Oct 2014 Pages: 21-24 Click here to read the article Report Provides Insight Into Mobile ID Fingerprint Technology Issue: Jul/Aug 2014…
ammunition and smoking gun

Success Story: Demonstrating Objectivity in Ballistic Identification

National Institute of Justice and Intelligent Automation, Inc. Date April 2015 Overview Firearms experts are seeking to strengthen their understanding of the accuracy and reliability of methods they use to associate fired ammunition recovered from a crime scene with a…