After some Halloween talk, Eric and Glenn discuss this episode’s research article: “The Utility of Expanded Conclusion Scales During Latent Print Examinations” by Carter, Vogelsand, Vanderkolk, and Busey in J Forensic Sciences (online, 2020). This study examines the results of 27 experts who completed 30 comparisons under a 3-point SWGAST scale versus 30 comparisons under a 5-point OSAC scale. The guys discuss error rates, changes in apparent decision thresholds, and the rate of misleading evidence of “support for…” decisions.
- Home
- About Us
- Interviews
Todd Weller Interview – Episode 235
DoubleLoop - 0Glenn Langenburg and Eric Ray are joined by Todd Weller to discuss the firearms/toolmarks discipline. Todd was involved in the NY firearms case from...Bob Garrett – Episode 229
DoubleLoop - 0Glenn Langenburg and Eric Ray pay special tribute this week to a giant in the fingerprint world, Bob Garrett. With the passing of Bob...Forensics in the New Normal – Episode 224
DoubleLoop - 0Glenn Langenburg and Eric Ray take a break from normal interviews and research reviews to host a laid-back happy hour discussion on how things...Simon Bunter Interview – Episode 214
DoubleLoop - 0Glenn Langenburg is joined by Simon Bunter from Keith Borer Consultants to discuss a number of cases where activity level propositions were key factors....Anouk de Ronde Interview – Episode 213
DoubleLoop - 0Eric Ray and Glenn Langenburg are joined by Anouk de Ronde from the Amsterdam University of Applied Sciences to continue the discussion on activity...
- Articles
Mindset Paper – Episode 236
DoubleLoop - 0In this episode, the guys return for Round 2 with Dr. Heidi Eldridge and Prof. Christophe Champod. This time, they discuss the second paper...Palm Print Black Box Study – Episode 234
DoubleLoop - 0In this episode, Eric and Glenn are joined by Dr. Heidi Eldridge and Prof, Christophe Champod, the authors of "Testing the accuracy and reliability...Gyro Accuracy Paper – Episode 233
DoubleLoop - 0Glenn Langenburg and Eric Ray finally get back on track with a review of a recent article on GYRO markings. "Evaluating the Accuracy and...Differing Conclusions Article – Episode 232
DoubleLoop - 0Glenn Langenburg and Eric Ray review the newest article from Austin Hicklin, Bradford Ulery, Madeline Ausdemore, and JoAnn Buscaglia titled "Why do latent fingerprint...Review of article on Conclusion Scales – Episode 231
DoubleLoop - 0After some Halloween talk, Eric and Glenn discuss this episode’s research article: “The Utility of Expanded Conclusion Scales During Latent Print Examinations” by Carter,...
- Cases
Knuckle-Crease Daubert Hearing – Episode 228
DoubleLoop - 0In this episode, Glenn and Eric discuss a recent case Glenn was involved in: a knuckle-crease case. The case had a Daubert hearing in...New York Firearms Case – Episode 227
DoubleLoop - 0Glenn Langenburg and Eric Ray review a recent court decision on firearms testimony. NY v Ross was a recent Frye case where the testimony...The Most Dangerous Animal of All Documentary – Episode 225
DoubleLoop - 0This week, the guys review and share their reactions to the documentary “The Most Dangerous Animal of All” (produced by Campfire Productions and available...How to Fix a Drug Scandal Documentary – Episodes 221, 222, 223
DoubleLoop - 0Part 1: Episode 221 In the first of two episodes, Glenn and Eric discuss Netflix’s “How to Fix a Drug Scandal” (2020), covering the actions...David Camm Case – Episodes 218, 219
DoubleLoop - 0Part 1 This episode is Part 1 on the Indiana v. David Camm case. Eric and Glenn review the evidence over multiple episodes. In this...
- Conferences
PNW Conference Panel – Episode 205
DoubleLoop - 0Glenn Langenburg leads a panel discussion (with Eric Ray joining via phone) at the Pacific Northwest Division of the IAI / Northwest Association of...2019 IAI Conference – Episode 204
DoubleLoop - 0Join Glenn Langenburg and Eric Ray in Reno, NV for the 2019 International Association for Identification conference. We are joined by Becca Coutant, Carey...IAI Recertification Test – Episode 180
DoubleLoop - 1Glenn Langenburg and Eric Ray report on a heated and controversial topic that caught the attention of the latent print world in the summer...2018 IAI Conference – Episode 174
DoubleLoop - 0Glenn Langenburg and Eric Ray return to the annual IAI conference in San Antonio to talk to attendees about the interesting lectures and workshops...2017 Florida Conference – Episode 168
DoubleLoop - 0Eric Ray hosts a live Double Loop Podcast discussion at the 2017 Florida Division IAI Conference in Panama City Beach, FL, and Glenn Langenburg...
- Research
Forensic Movie Recommendations during COVID-19 – Episode 217
DoubleLoop - 0In the wake of COVID-19 and so many of us staying at home, we decided as an April Fools’ Episode to make a list...Christophe Champod Interview – Episode 191
DoubleLoop - 0Eric Ray and Glenn Langenburg are joined for another episode discussing statistics and probabilities by Professor Christophe Champod from the University of Lausanne. Christophe...Alicia Wilcox Interview – Episodes 163 + 164
DoubleLoop - 0Part 1 - Episode 163 Glenn Langenburg and Eric Ray join with Dr. Alicia Wilcox from Husson University in Bangor, Maine in a discussion of...2017 ICFIS – Episode 155 + 156
DoubleLoop - 0Part 1 Glenn discusses the recent 2017 International Conference on Forensic Inference and Statistics that was held in Minnesota. Specifically, Glenn helped lead a project...FBI’s New Approach – Episode 148
DoubleLoop - 0Glenn Langenburg and Eric Ray share exciting and groundbreaking news! The FBI latent print unit has officially moved beyond Approach 1. Their examiners may...
- Videos
How to Dust for Fingerprints
DoubleLoop - 0The Smithsonian Channel series: Catching Killers have created an informative video to show how crime scene investigators working on the Night Stalker case try all types of fine, dry...How Do Fingerprints Form?
DoubleLoop - 0How do fingerprints form? Even though many people think it’s random, a lot of it has to do with your genes! Great video, especially for...How to Compare Fingerprints
DoubleLoop - 0The following video from RayForensics.com provides a basic look into how fingerprint comparisons are performed and the level of detail in agreement that needs to...Finding Patterns in Fingerprints
DoubleLoop - 0The first time fingerprints were ever used as evidence in a murder investigation, the detectives used the same system of classification that we use...Fingerprints & Sweat Glands
DoubleLoop - 0Amazing time lapse footage of the secretion of sweat from the eccrine glands in the hand and how, when in contact with a surface,...
- Store
- Home
- About Us
- Interviews
Todd Weller Interview – Episode 235
DoubleLoop - 0Glenn Langenburg and Eric Ray are joined by Todd Weller to discuss the firearms/toolmarks discipline. Todd was involved in the NY firearms case from...Bob Garrett – Episode 229
DoubleLoop - 0Glenn Langenburg and Eric Ray pay special tribute this week to a giant in the fingerprint world, Bob Garrett. With the passing of Bob...Forensics in the New Normal – Episode 224
DoubleLoop - 0Glenn Langenburg and Eric Ray take a break from normal interviews and research reviews to host a laid-back happy hour discussion on how things...Simon Bunter Interview – Episode 214
DoubleLoop - 0Glenn Langenburg is joined by Simon Bunter from Keith Borer Consultants to discuss a number of cases where activity level propositions were key factors....Anouk de Ronde Interview – Episode 213
DoubleLoop - 0Eric Ray and Glenn Langenburg are joined by Anouk de Ronde from the Amsterdam University of Applied Sciences to continue the discussion on activity...
- Articles
Mindset Paper – Episode 236
DoubleLoop - 0In this episode, the guys return for Round 2 with Dr. Heidi Eldridge and Prof. Christophe Champod. This time, they discuss the second paper...Palm Print Black Box Study – Episode 234
DoubleLoop - 0In this episode, Eric and Glenn are joined by Dr. Heidi Eldridge and Prof, Christophe Champod, the authors of "Testing the accuracy and reliability...Gyro Accuracy Paper – Episode 233
DoubleLoop - 0Glenn Langenburg and Eric Ray finally get back on track with a review of a recent article on GYRO markings. "Evaluating the Accuracy and...Differing Conclusions Article – Episode 232
DoubleLoop - 0Glenn Langenburg and Eric Ray review the newest article from Austin Hicklin, Bradford Ulery, Madeline Ausdemore, and JoAnn Buscaglia titled "Why do latent fingerprint...Review of article on Conclusion Scales – Episode 231
DoubleLoop - 0After some Halloween talk, Eric and Glenn discuss this episode’s research article: “The Utility of Expanded Conclusion Scales During Latent Print Examinations” by Carter,...
- Cases
Knuckle-Crease Daubert Hearing – Episode 228
DoubleLoop - 0In this episode, Glenn and Eric discuss a recent case Glenn was involved in: a knuckle-crease case. The case had a Daubert hearing in...New York Firearms Case – Episode 227
DoubleLoop - 0Glenn Langenburg and Eric Ray review a recent court decision on firearms testimony. NY v Ross was a recent Frye case where the testimony...The Most Dangerous Animal of All Documentary – Episode 225
DoubleLoop - 0This week, the guys review and share their reactions to the documentary “The Most Dangerous Animal of All” (produced by Campfire Productions and available...How to Fix a Drug Scandal Documentary – Episodes 221, 222, 223
DoubleLoop - 0Part 1: Episode 221 In the first of two episodes, Glenn and Eric discuss Netflix’s “How to Fix a Drug Scandal” (2020), covering the actions...David Camm Case – Episodes 218, 219
DoubleLoop - 0Part 1 This episode is Part 1 on the Indiana v. David Camm case. Eric and Glenn review the evidence over multiple episodes. In this...
- Conferences
PNW Conference Panel – Episode 205
DoubleLoop - 0Glenn Langenburg leads a panel discussion (with Eric Ray joining via phone) at the Pacific Northwest Division of the IAI / Northwest Association of...2019 IAI Conference – Episode 204
DoubleLoop - 0Join Glenn Langenburg and Eric Ray in Reno, NV for the 2019 International Association for Identification conference. We are joined by Becca Coutant, Carey...IAI Recertification Test – Episode 180
DoubleLoop - 1Glenn Langenburg and Eric Ray report on a heated and controversial topic that caught the attention of the latent print world in the summer...2018 IAI Conference – Episode 174
DoubleLoop - 0Glenn Langenburg and Eric Ray return to the annual IAI conference in San Antonio to talk to attendees about the interesting lectures and workshops...2017 Florida Conference – Episode 168
DoubleLoop - 0Eric Ray hosts a live Double Loop Podcast discussion at the 2017 Florida Division IAI Conference in Panama City Beach, FL, and Glenn Langenburg...
- Research
Forensic Movie Recommendations during COVID-19 – Episode 217
DoubleLoop - 0In the wake of COVID-19 and so many of us staying at home, we decided as an April Fools’ Episode to make a list...Christophe Champod Interview – Episode 191
DoubleLoop - 0Eric Ray and Glenn Langenburg are joined for another episode discussing statistics and probabilities by Professor Christophe Champod from the University of Lausanne. Christophe...Alicia Wilcox Interview – Episodes 163 + 164
DoubleLoop - 0Part 1 - Episode 163 Glenn Langenburg and Eric Ray join with Dr. Alicia Wilcox from Husson University in Bangor, Maine in a discussion of...2017 ICFIS – Episode 155 + 156
DoubleLoop - 0Part 1 Glenn discusses the recent 2017 International Conference on Forensic Inference and Statistics that was held in Minnesota. Specifically, Glenn helped lead a project...FBI’s New Approach – Episode 148
DoubleLoop - 0Glenn Langenburg and Eric Ray share exciting and groundbreaking news! The FBI latent print unit has officially moved beyond Approach 1. Their examiners may...
- Videos
How to Dust for Fingerprints
DoubleLoop - 0The Smithsonian Channel series: Catching Killers have created an informative video to show how crime scene investigators working on the Night Stalker case try all types of fine, dry...How Do Fingerprints Form?
DoubleLoop - 0How do fingerprints form? Even though many people think it’s random, a lot of it has to do with your genes! Great video, especially for...How to Compare Fingerprints
DoubleLoop - 0The following video from RayForensics.com provides a basic look into how fingerprint comparisons are performed and the level of detail in agreement that needs to...Finding Patterns in Fingerprints
DoubleLoop - 0The first time fingerprints were ever used as evidence in a murder investigation, the detectives used the same system of classification that we use...Fingerprints & Sweat Glands
DoubleLoop - 0Amazing time lapse footage of the secretion of sweat from the eccrine glands in the hand and how, when in contact with a surface,...
- Store
The Double Loop Podcast is a weekly show featuring Glenn Langenburg and Eric Ray discussing latent print topics, current events in forensic science, the newest research articles, interesting guests, and analysis of notable cases from a forensic scientist perspective.
The Double Loop Podcast © 2021