Double Loop Podcast

Episode 295 - Forensics on YouTube Reaction

Recently, a YouTube science channel discussed five different forensic disciplines and explored potential issues with each. Eric Ray and Glenn Langenburg react to the vide

Episode 294: Cindy Cale Interview and DNA Activity Level

In this episode, the guys start off with Regional Quirkisms from the Land Down Undah.  They then interview Cindy Cale, DNA expert from DNA Mavens, a consulting and traini

Episode 293_ASB Standards Part 2

Eric and Glenn finish this two-parter episode about ASB Standards and Best Practice Recommendations. Specifically, in Part 2, they cover ASB Standard 015 "Standard for Ex

Episode 292 - ASB Standards Part 1

Eric and Glenn start off this supersized two-parter topic with a Regional Quirkisms game of Canadian-isms.  Then they move past the Great White North and talk about ASB S

Episode 291 - Mundane Obstacles to Developing a Stats Model

Eric and Glenn start the episode with a listener email and then play a numbers themed game of Regional Quirkisms.  For the topic of this episode, the guys discuss a 2025

Episode 290 - Review of a Bias Research Paper

In this episode, the guys start off with some Michigan Regional Quirkisms.  They then review a 2024 paper titled "The effects of cognitive bias, examiner expertise, and s

Episode 289 - Angela Tonietto Interview - Palm Patterns

Glenn Langenburg and Eric Ray interview Angela Tonietto about her recent article on the frequency of patterns in palm prints. ("Patterning in the Distal Portions of the P

Episode 288 - Close Non-matches

Happy New Year 2026!  The boys are back in town, with a new game: Regional Quirkisms.  After discussing Minnesota quirkisms, the guys answer a listener question from Irel

Episode 287 - IAI 2025 Review

Eric Ray and Glenn Langenburg talk about their week in Orlando at the 2025 IAI Educational Conference. Hear about Quality Metrics, limited examinations, and linking cases

Episode 286 - Forensic Science Ireland Interview

In this episode Eric poses to Glenn a Mandela effect question concerning household cleaning products.  After that, the guys celebrate the 4th of July holiday by welcoming

Episode 285 - Michael Whyte Interview - Latent to Latent Comparisons

In this episode, the guys start with a product-based Mandela effect question.  Then they welcome back long-time friend of the show and webmaster, Michael Whyte from the N

Episode 284 - Black Box '22 - Part 2 (with Brendan Max)

In this episode, Eric stumps Glenn with a geography based Mandela Effect question. Then the guys welcome their guest commentator, Brendan Max, Public Defender and Chief o

Episode 283 - DNA & Patterns

Glenn Langenburg and Eric Ray review two articles from Cell that focus on the genetic basis for ridge development and pattern formation. 'The developmental basis of finge

Episode 282 - Noblis-FBI Black Box 2 Fingerprint Study

In this episode, Glenn and Eric start with a quick game of “A Truth, A Lie, and a Mandella Effect”. Then they pose a question from a listener regarding interest in a foru

Episode 281 Kasey Wertheim Tribute

Eric Ray and Glenn Langenburg pay tribute to our colleague and friend. Kasey Wertheim passed away on March 7, 2025 and will be greatly missed. Please join us as we rememb

Episode 280 - Pat Wertheim Tribute

Eric Ray and Glenn Langenburg pay tribute to our mentor and friend. Pat Wertheim recently passed and will be greatly missed. Please join us as we remember his legacy and

Episode 279 - Simultaneous Impressions

In this episode Glenn and Eric catch up after some hectic travel from recent weather issues. They do some news updates and also Eric had advice for new Patreon subscriber

Episode 278 - Aussie Paper on Examiner Disagreements

In this first recorded episode of 2025, Eric and Glenn start with Eric being pedantic in his “A Truth, A Lie, and a Mandela Effect”. The guys catch up on New Year stuff a

Episode 277 - Sarah Chu Interview

Glenn and Eric interview Sarah Chu, director of policy and reform with the Perlmutter Center for Legal Justice's (PCLJ) forensic science policy initiatives. Sarah breaks

Episode 276 - History Episode - Stories of the Forefathers

In this episode the guys discuss historical figures in the field of fingerprints. At the top of the episode Eric gives Glenn an Australian themed “A Truth, a Lie, and a M