Sinopsis

Support the Double Loop Podcast at http://www.patreon.com/doublelooppodcastThe Double Loop Podcast is a weekly show that features Glenn Langenburg and Eric Ray discussing latent print topics. Current events, the latest trends, intriguing research, and interesting guests. Check back every week for the latest latent print talk.

Episodios

  • Episode 206 - OSAC FRS Standards for Conclusions

    Episode 206 - OSAC FRS Standards for Conclusions

    25/10/2019 Duración: 01h26min

    In this episode, Eric and Glenn tackle the 2018 proposed OSAC Friction Ridge Subcommittee (FRS) Standards for Conclusions. They review the entire document and provide the definitions for 5 conclusions: identification, exclusion, inconclusive, and support for same/different sources. They give their thoughts and reactions to these terms and give examples of when they might apply. Glenn discusses an upcoming jury trial where he will be using these terms and how they appear in his reports. Bonus: an unexpected discussion of Downton Abbey! Upcoming classes mentioned at the end. Note: this episode has premium content for our Patreon Supporters.

  • Episode 205 - PNW Conference Panel

    Episode 205 - PNW Conference Panel

    17/10/2019 Duración: 01h26min

    Glenn Langenburg leads a panel discussion (with Eric Ray joining via phone) at the Pacific Northwest Division of the IAI / Northwest Association of Forensic Scientists Joint Conference with guests and Janis Puracal from the Forensic Justice Project and Carey Hall. The panel discussion explores the Janis's history with exonerations, innocence, justice reform, and forensic science and the challenges that face those that have been erroneously convicted. The conversation also explores the challenges that forensic scientists face in these areas and steps that they can take to ensure neutrality and that justice is served. Head to DoubleLoopPodcast.com for more episodes and look through the soon-to-arrive Merch store!

  • Episode 204 - 2019 IAI Conference

    Episode 204 - 2019 IAI Conference

    23/09/2019 Duración: 47min

    Join Glenn Langenburg and Eric Ray in Reno, NV for the 2019 International Association for Identification conference. We are joined by Becca Coutant, Carey Hall, Nicole Praska, Claudine Carter Pereira, and Jason Jardine and cover a number of topics including limited examinations, defense attorney perspectives, conclusion terminology, blood prints, management, and stats. There's even a little story of Glenn losing his cool and an out-take for the blooper reel. The conference was fantastic, and big thanks to all of the new listeners that we met during the week. To celebrate 200+ episodes, an old photo of Glenn with John Vanderkolk is included.

  • Episode 203 - FBI Persistency Paper

    Episode 203 - FBI Persistency Paper

    16/09/2019 Duración: 01h07min

    Eric Ray and Glenn Langenburg review a new paper that's been long in the making. "The permanence of friction ridge skin and persistence of friction ridge skin and impressions: A comprehensive review and new results" by Monson, et al. was recently published in Forensic Science International. The paper details the persistence and permanence of 1st, 2nd, and 3rd level detail over multiple years. There are important takeaways from the paper although it isn't quite the level of the FBI/Noblis papers. So let's see what the guys think.

  • Episode 202 - Idaho Interviews

    Episode 202 - Idaho Interviews

    21/08/2019 Duración: 01h33min

    Eric Ray was recently teaching in Idaho (the ID state) and had the opportunity to sit down with Nick Craven, Katlyn Shelar, Whitney Betzel, and Tara Koho and talk with them about topics ranging from latent print exclusions, AFIS candidate lists, and the future of statistical models. Glenn Langenburg then joins Eric to continue the discussion with some follow-up points and continuing the conversation further into Exclusion policies and requirements, the nature of risk, and a preview on how to use a 5 Conclusion scale.

  • Episode 201 - Gaze Detection Article

    Episode 201 - Gaze Detection Article

    25/07/2019 Duración: 01h07min

    Eric Ray and Glenn Langenburg discuss the new article from Austin Hicklin, Brad Ulery, Tom Busey, and company researching latent print examiners with eye tracking equipment. Gaze behavior and cognitive states during fingerprint target group localization was published in Cognitive Research and examines what we look at and how context plays a huge part in this process. Download the paper online and follow along as we explore a great new paper.

  • Episode 200 - Michael Whyte Interview

    Episode 200 - Michael Whyte Interview

    11/07/2019 Duración: 01h11min

    EPISODE 200!!! - Eric Ray and Glenn Langenburg celebrate the big number 200 with an overseas interview with Australian latent print examiner and friend of the show, Michael Whyte. The guys talk forensics down under, some of the travels, teaching, and technology that Michael is involved with and announce DoubleLoopPodcast.com. Check it out, and let us know how we can make it even better.

  • Episode 199 - Brandon Garrett Interview

    Episode 199 - Brandon Garrett Interview

    11/05/2019 Duración: 01h11min

    Eric and Glenn return from a couple weeks off of crazy travels with a few stories from the road including a "Men Who Love My Little Pony" ("Bronies") cosplay conference. In this episode, the guys sit down for a fantastic interview with Duke Law Professor Brandon Garrett to discuss his and colleagues' recent juror study. The most recent paper provides fingerprint proficiency test results to mock jurors to see how this information may impact their decision making and how reliable they believe fingerprint evidence to be.

  • Episode 198 - Archie Williams Case

    Episode 198 - Archie Williams Case

    01/04/2019 Duración: 01h01min

    Eric Ray and Glenn Langenburg start the show talking about some exciting new classes that they have developed. Then they discuss which is more correct: 2009 "NRC" Report or "NAS" Report. Finally, they describe the available facts in the recent Archie Williams Innocence Project exoneration case. He was freed after 36 years in prison for rape based on eyewitness identifications, but an AFIS hit now implicates another person.

  • Episode 197 - Review of Miami-Dade Error Rates

    Episode 197 - Review of Miami-Dade Error Rates

    18/03/2019 Duración: 01h14min

    Glenn and Eric start with a brief chat about ethics and the recent JFI letter regarding testing and studies involving human subjects. They then jump into the main discussion on the "Review of Several False Positive Error Rate Estimates for Latent Fingerprint Examination Proposed Based on the 2014 Maimi-Dade Police Department Study" by Madeline Ausdemore, Jessie Hendricks, and Cedric Neumann. The review found that the data best fit a model of two error rates: one for when the true match is not present and one where the true match is one of the individuals presented. The article concludes with follow-up letters to the JFI from Igor Pacheco, Brian Cerchiai, Stephanie Stoiloff, Glenn Langenburg, Jonathan Koehler, Carey Hall, and Brendan Max. This episode is sponsored by GO EVIDENCE.

  • Episode 196 - Gianni Ribeiro Article and Interview

    Episode 196 - Gianni Ribeiro Article and Interview

    07/03/2019 Duración: 01h28min

    Eric Ray and Glenn Langenburg discuss post-Laura Interview thoughts after last episode's "lay person" interview. They tie in a new paper surveying mock-jurors, published by Gianni Ribeiro from Australia. Later, Gianni calls in from Oz to discuss her research. Oh, and Eric and Glenn both come up with genius ideas this episode.

  • Episode 195 - Laura Keck Interview

    Episode 195 - Laura Keck Interview

    22/02/2019 Duración: 01h13min

    Glenn Langenburg and Eric Ray interview friend-of-the-show, Laura Keck, and dive deep into how forensic evidence is interpreted by a lay person. Does one fingerprint identification vs. 13 fingerprint identifications make a difference? What if the prints were on an inner drug baggie vs. an outer drug baggie? What is an acceptable error rate for latent prints or DNA? What if there is no other forensic evidence? Laura's perspective as a lay person (but with knowledge and interest in forensic science) and what she expects from expert testimony should lead to experts taking a close look at how they testify, what they examine, and how to prepare for court.

  • Episode 194 - Melting Pot of Topics

    Episode 194 - Melting Pot of Topics

    14/02/2019 Duración: 51min

    Eric Ray shares some big news and then shares a story about the dictionary. Glenn Langenburg brings another Super Fan into the fold as the Double Loop Podcast website starts to come together and some new research from Australia ( https://www.youtube.com/watch?v=7dG6Rw8_KLg ). They both then revisit the discussion on investigative leads. It's important to understand the distinction between reporting AFIS hits as preliminary without verification and a true "investigative lead" where there are only limited features in agreement. This episdoe is sponsored by Go Evidence Laboratories.

  • Episode 193 - Fingerprints for Investigative Leads

    Episode 193 - Fingerprints for Investigative Leads

    29/01/2019 Duración: 01h06min

    After arguing about the Mandela Effect, Glenn and Eric catch up on some email and discuss ANAB AR3125 7.8.1.2.2 and how this impacts reporting conclusions. Glenn talks about using verbal LRs to express the perceived weight of evidence. Then the guys review a paper from Israel on investigative leads (Attias, et al. 2015) from J of For Sci & Criminology.

  • Episode 192 - Mark Stolorow Interview

    Episode 192 - Mark Stolorow Interview

    22/01/2019 Duración: 01h13min

    Glenn Langenburg and Eric Ray are proud to be joined by Mark Stolorow. Before his years guiding the creation of the OSAC and his days with NIST, he had a varied history getting kicked out of the chemistry department, avoiding the draft, working as a cop, researching blood typing, and wearing plaid jackets. Listen to the interview for all the details of a fantastic career. This episode is sponsored by GO EVIDENCE LABORATORIES.

  • Episode 191 - Christophe Champod Interview

    Episode 191 - Christophe Champod Interview

    13/01/2019 Duración: 01h31min

    Eric Ray and Glenn Langenburg are joined for another episode discussing statistics and probabilities by Professor Christophe Champod from the University of Lausanne. Christophe takes us on a history of his work on fingerprint statistics, his past, current, and future research projects, his hope for the future of statistics in fingerprint comparisons, and how the newest Swiss model is available for use through the Pianos software. This episode is sponsored by GO EVIDENCE.

  • Episode 190 - Gianni Ribeiro Interview (and OSAC)

    Episode 190 - Gianni Ribeiro Interview (and OSAC)

    30/12/2018 Duración: 56min

    Eric Ray and Glenn Langenburg interview Australian researcher Gianni Ribeiro at the December 2018 OSAC meeting in Phoenix, AZ. Gianni tells the guys about her research interests studying how juries weigh evidence vs. alibis and other jury studies. She also talks about her impressions of the experts gathered at the OSAC meeting, the discussions going on related to likelihood ratios, and the battles over issues big and small in various subcommittees. This episode is sponsored by GO EVIDENCE LABORATORIES and is sponsored by IDEMIA.

  • Episode 189 - Henry Swofford Interview

    Episode 189 - Henry Swofford Interview

    22/12/2018 Duración: 01h19min

    Glenn Langenburg and Eric Ray are joined in-person by Henry Swofford as they discuss his career with the Army Crime Lab and the development of FRStat, a model that produces a similarity score between two compared fingerprints and a ratio of how that score fits into same source or different source distributions. The guys discuss why the model was developed, how it's being used, and some of the models limitations. This episode is sponsed by GoEvidence Forensic Laboratories, and this episode is also sponsored by IDEMIA.

  • Episode 188 - Cedric Neumann Interview

    Episode 188 - Cedric Neumann Interview

    10/12/2018 Duración: 01h15min

    Glenn Langenburg and Eric Ray are joined by Cedric Neumann to discuss all things statistical models, probabilities, likelihood ratios, Bayes factors, and more. Cedric discusses his history of research, his history in forensics, and how that's brought him from Switzerland to the UK to the US. This episode is sponsored by IDEMIA and their new Case AFIS product.

  • Episode 187 - Richard Ramirez

    Episode 187 - Richard Ramirez

    03/12/2018 Duración: 01h20min

    Eric Ray and Glenn Langenburg move into a discussion of a new case with the help of special guest Becki Daher. Richard Ramirez, the Night Stalker, terrorized California in the mid-1980's before he has caught with the help of fingerprints and new AFIS technology. Becki Daher was working for the Orange County Sheriff's Office at the time and lifted the fingerprint from the car window that eventually led to his arrest. Join us in a discussion of Ramirez's crimes, the terror felt by the residents of California, and the high-tech and low-tech techniques that led to his arrest and conviction. (This episode is sponsored by IDEMIA.)

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