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Popular Episodes

Cases

The Staircase – Episodes 175 – 178

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Part 1 Eric Ray and Glenn Langenburg focus their forensic science backgrounds on the infamous Kathleen Peterson murder...
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Cases

Richard Ramirez – Episode 187

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Eric Ray and Glenn Langenburg move into a discussion of a new case with the help of special guest Becki Daher. Richard...
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Interviews

Michael Whyte Interview – Episode 200

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EPISODE 200!!! - Eric Ray and Glenn Langenburg celebrate the big number 200 with an overseas interview with Australian latent print examiner...
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Cases

Making a Murderer Season 2

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Part 1 - Episode 183 Glenn Langenburg and Eric Ray delve into the second season of Making a...
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Articles

FBI Persistency Paper – Episode 203

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Eric Ray and Glenn Langenburg review a new paper that's been long in the making. "The permanence of friction ridge skin and...
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New Podcast

Discussions

Best Latent Print Books – Episode 226

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Glenn Langenburg and Eric Ray were recently asked which latent print books they recommend the most. This episode they talk through the...
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Must Listen

Conferences

Bill Schade and Heather Conner Interviews – Episode 02

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Eric Ray and Glenn Langenburg talk with Bill Schade and Heather Conner about lectures at the 2013 IAI Conference.
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Interviews

With interesting guests from the Forensic, Law Enforcement, and Academic Community

Must Listen

Interviews

Marcel de Puit Interview – Episode 30

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Glenn interviews Marcel de Puit from the Netherlands Forensic Institute while at the Fingerprint Society Conference. Eric and Glenn then talk for...
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Cases

Tucson Prime Time Rapist – Episode 182

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Glenn Langenburg and Eric Ray are joined by John Swartz, retired from the Tucson Police Department, for a discussion on the Prime...
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Interviews

Anja Einseln Interview – Episodes 158 – 159

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Part 1 Glenn Langenburg and Eric Ray first revisit a couple of additional aspects of our previous discussion...
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Interviews

Michael Whyte Interview – Episode 200

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EPISODE 200!!! - Eric Ray and Glenn Langenburg celebrate the big number 200 with an overseas interview with Australian latent print examiner...
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Interviews

Caroline Gibb Interview – Episode 146

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Glenn Langenburg and Eric Ray interview Caroline Gibb about her experiences coming up in the latent print field in Australia. LEARN about...
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Case Interviews

Cases

Tucson Prime Time Rapist – Episode 182

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Glenn Langenburg and Eric Ray are joined by John Swartz, retired from the Tucson Police Department, for a discussion on the Prime...
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Cases

The Staircase – Episodes 175 – 178

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Part 1 Eric Ray and Glenn Langenburg focus their forensic science backgrounds on the infamous Kathleen Peterson murder...
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Cases

Familial DNA – Episode 166

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Eric Ray and Glenn Langenburg discuss two forensic cases that have been in the news in the past few years. First, the...
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Cases

Matt Marvin Interview – Episode 167

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Eric Ray and Glenn Langenburg are joined by Matt Marvin of Ron Smith and Associates to discuss in greater detail the details...
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Cases

BC Court Decision – Episode 10

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Glenn and Eric discuss the recent acquital of Timothy Bornyk by Justice Gordon Funt in a British Columbian court.
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Interviews
Latest

Interviews

Forensics in the New Normal – Episode 224

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Glenn Langenburg and Eric Ray take a break from normal interviews and research reviews to host a laid-back happy hour discussion on...
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Interviews

Simon Bunter Interview – Episode 214

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Glenn Langenburg is joined by Simon Bunter from Keith Borer Consultants to discuss a number of cases where activity level propositions were...
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Interviews

Anouk de Ronde Interview – Episode 213

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Eric Ray and Glenn Langenburg are joined by Anouk de Ronde from the Amsterdam University of Applied Sciences to continue the discussion...
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Interviews

Brendan Max Interview – Episode 210

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In this episode, Glenn and Eric interview Brendan Max, Chief of the Cook County Public Defender Forensic Science Unit in Illinois. They...
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Interviews

AC Brogdon Interview – Episode 207

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Eric Ray starts the show sharing some big news with Glenn Langenburg and the listeners. The guys are then joined by AC...
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Conferences

PNW Conference Panel – Episode 205

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Glenn Langenburg leads a panel discussion (with Eric Ray joining via phone) at the Pacific Northwest Division of the IAI / Northwest...
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Popular Episodes

Cases

The Staircase – Episodes 175 – 178

DoubleLoop - 0
Part 1 Eric Ray and Glenn Langenburg focus their forensic science backgrounds on the infamous Kathleen Peterson murder...
Read more
Interviews

Michael Whyte Interview – Episode 200

DoubleLoop - 0
EPISODE 200!!! - Eric Ray and Glenn Langenburg celebrate the big number 200 with an overseas interview with Australian latent print examiner...
Read more
Cases

Richard Ramirez – Episode 187

DoubleLoop - 0
Eric Ray and Glenn Langenburg move into a discussion of a new case with the help of special guest Becki Daher. Richard...
Read more
Interviews

Simon Bunter Interview – Episode 214

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Glenn Langenburg is joined by Simon Bunter from Keith Borer Consultants to discuss a number of cases where activity level propositions were...
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Interviews

Christophe Champod Interview – Episode 191

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Eric Ray and Glenn Langenburg are joined for another episode discussing statistics and probabilities by Professor Christophe Champod from the University of...
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Research Interviews

Interviews

Dave Charlton Interview – Episodes 21, 22

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Part 1 - Episode 21 Eric and Glenn interview Dr. Dave Charlton about his start in forensics and...
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Interviews

AAAS Report & Interviews – Episodes 171 ~ 173

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Part 1 - John Black Interview Glenn Langenburg and Eric Ray finally get around to discussing the report...
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Interviews

Alicia Wilcox Interview – Episodes 163 + 164

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Part 1 - Episode 163 Glenn Langenburg and Eric Ray join with Dr. Alicia Wilcox from Husson University...
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Interviews

Teresa Wu Interview – Episode 36

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Glenn and Eric interview Teresa Wu from 3M/Cogent about the company and new research into preventing errors and statistical models.
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Interviews

David Johnson Interview – Episode 28

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Glenn and Eric interview David Johnson from Las Vegas about research topics, sufficiency, efficiency, and Vegas crime. Click here...
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Case Studies

An analysis of notable cases from a forensic scientist perspective.

Must Listen

Cases

Alabama Erroneous ID – Episode 108

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Eric and Glenn talk through the recent news that Beniah Dandridge was wrongly convicted for murder and has served 19 years in...
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Cases

Matt Marvin Interview – Episode 167

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Eric Ray and Glenn Langenburg are joined by Matt Marvin of Ron Smith and Associates to discuss in greater detail the details...
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Cases

Richard Ramirez – Episode 187

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Eric Ray and Glenn Langenburg move into a discussion of a new case with the help of special guest Becki Daher. Richard...
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Cases

Archie Williams Case – Episode 198

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Eric Ray and Glenn Langenburg start the show talking about some exciting new classes that they have developed. Then they discuss which...
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Cases

David Camm Case – Episodes 218, 219

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Part 1 This episode is Part 1 on the Indiana v. David Camm case. Eric and Glenn review the...
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Court Testimony

Cases

Making a Murderer Season 2

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Part 1 - Episode 183 Glenn Langenburg and Eric Ray delve into the second season of Making a...
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Cases

Alabama Erroneous ID – Episode 108

DoubleLoop - 0
Eric and Glenn talk through the recent news that Beniah Dandridge was wrongly convicted for murder and has served 19 years in...
Read more
Cases

CA Appellate Decision – Episode 98

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Eric and Glenn discuss a recent decision coming down from a California appellate court that upheld fingerprint testimony but uses uninformed and...
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Cases

BC Court Decision – Episode 10

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Glenn and Eric discuss the recent acquital of Timothy Bornyk by Justice Gordon Funt in a British Columbian court.
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Cases

OJ Simpson Case – Episodes 133 – 134

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Part 1 After the success and interest of Making a Murderer episodes, Glenn and Eric travel back to...
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Episodes
LATEST

Cases

The Most Dangerous Animal of All Documentary – Episode 225

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This week, the guys review and share their reactions to the documentary “The Most Dangerous Animal of All” (produced by Campfire Productions...
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Cases

How to Fix a Drug Scandal Documentary – Episodes 221, 222, 223

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Part 1: Episode 221 In the first of two episodes, Glenn and Eric discuss Netflix’s “How to Fix a...
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Cases

David Camm Case – Episodes 218, 219

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Part 1 This episode is Part 1 on the Indiana v. David Camm case. Eric and Glenn review the...
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Cases

Archie Williams Case – Episode 198

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Eric Ray and Glenn Langenburg start the show talking about some exciting new classes that they have developed. Then they discuss which...
Read more
Cases

Richard Ramirez – Episode 187

DoubleLoop - 0
Eric Ray and Glenn Langenburg move into a discussion of a new case with the help of special guest Becki Daher. Richard...
Read more
Cases

Making a Murderer Season 2

DoubleLoop - 0
Part 1 - Episode 183 Glenn Langenburg and Eric Ray delve into the second season of Making a...
Read more

Popular Episodes

Cases

The Staircase – Episodes 175 – 178

DoubleLoop - 0
Part 1 Eric Ray and Glenn Langenburg focus their forensic science backgrounds on the infamous Kathleen Peterson murder...
Read more
Cases

Richard Ramirez – Episode 187

DoubleLoop - 0
Eric Ray and Glenn Langenburg move into a discussion of a new case with the help of special guest Becki Daher. Richard...
Read more
Cases

Making a Murderer Season 2

DoubleLoop - 0
Part 1 - Episode 183 Glenn Langenburg and Eric Ray delve into the second season of Making a...
Read more
Cases

Archie Williams Case – Episode 198

DoubleLoop - 0
Eric Ray and Glenn Langenburg start the show talking about some exciting new classes that they have developed. Then they discuss which...
Read more
Cases

Madrid Error – Episodes 111, 112, 113

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Part 1 Glenn and Eric begin a 3-part review of the full report from the Office of the...
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Episodes on Errors

Cases

Matt Marvin Interview – Episode 167

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Eric Ray and Glenn Langenburg are joined by Matt Marvin of Ron Smith and Associates to discuss in greater detail the details...
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Cases

Madrid Error – Episodes 111, 112, 113

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Part 1 Glenn and Eric begin a 3-part review of the full report from the Office of the...
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Cases

Melissa Neylon Case – Episode 118

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Glenn and Eric first take a long detour to discuss their initial reactions to the newest Star Wars movie (of course), but...
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Cases

Hodge Podge 1 – Episode 09

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Eric and Glenn discuss a hodge podge of topics including the Susan May case, review of additional information in latents, image metadata,...
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Articles

An deep dive into research articles pertaining to latent print, crime scene, and expert testimony

Must Listen

Articles

Blind QC Research at HFSC – Episode 220

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In this episode, Eric and Glenn start the show discussing a few kind emails and reviews of this podcast. They also talk...
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Articles

White Box Article – Episodes 69, 70

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Part 1 - Episode 69 Eric and Glenn review the newest White Box study from Noblis - Measuring...
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Articles

Jay Kadane Article – Episode 144

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Eric Ray and Glenn Langenburg review an article in Forensic Magazine that discusses the presentation that Jay Kadane gave at the American...
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Articles

NIJ Sufficiency Article – Episode 42

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Glenn and Eric recound recent travels and then transition into a discussion of the article on Improving the Understanding and the Reliability...
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Articles

Categorical vs. Probabilistic – Episode 165

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Glenn Langenburg and Eric Ray tackle two articles in one fantastic episode. First, "Lay Understanding of 'Identification': How Jurors Interpret Forensic Identification...
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Episodes on Conclusions

Articles

Swofford Paradigm Shift Article – Episode 88

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Glenn and Eric review the new article by Henry Swofford in the Journal of Forensic Identification, The Emerging Paradigm Shift in the...
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Articles

Strength of Conclusion – Episode 120

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Glenn and Eric discuss a recent article published by Michele Triplett titled, Complexity, Level of Association, and Strength of Fingerprint Conclusions. The...
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Articles

Categorical vs. Probabilistic – Episode 165

DoubleLoop - 0
Glenn Langenburg and Eric Ray tackle two articles in one fantastic episode. First, "Lay Understanding of 'Identification': How Jurors Interpret Forensic Identification...
Read more

Episodes
LATEST

Articles

Blind QC Research at HFSC – Episode 220

DoubleLoop - 0
In this episode, Eric and Glenn start the show discussing a few kind emails and reviews of this podcast. They also talk...
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Articles

Aging Latent Prints – Episode 215

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Eric and Glenn wrap up their “activity level series” by discussing two articles (Girod, et al. 2016; and Hinners, et al. 2020)...
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Articles

Activity Level – Episode 212

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In this episode Glenn and Eric dig into ‘activity level propositions’, which will start a series of episodes that takes a deep...
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Articles

Friction Ridge Process Map – Episode 209

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Eric Ray and Glenn Langenburg talk through the latest document out of the OSAC Friction Ridge Subcommittee. In November 2019, they released...
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Articles

Review of Conflict Resolution Paper – Episode 208

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This episode, the guys review and discuss a paper about resolving conflict resolution from Montani, et al. titled “Resolving differing expert opinions”...
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Articles

FBI Persistency Paper – Episode 203

DoubleLoop - 0
Eric Ray and Glenn Langenburg review a new paper that's been long in the making. "The permanence of friction ridge skin and...
Read more

Popular Episodes

Articles

Review of Miami-Dade Error Rates – Episode 197

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Glenn and Eric start with a brief chat about ethics and the recent JFI letter regarding testing and studies involving human subjects....
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Articles

FBI Persistency Paper – Episode 203

DoubleLoop - 0
Eric Ray and Glenn Langenburg review a new paper that's been long in the making. "The permanence of friction ridge skin and...
Read more
Articles

Friction Ridge Process Map – Episode 209

DoubleLoop - 0
Eric Ray and Glenn Langenburg talk through the latest document out of the OSAC Friction Ridge Subcommittee. In November 2019, they released...
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Articles

Melting Point Topics – Episode 194

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Eric Ray shares some big news and then shares a story about the dictionary. Glenn Langenburg brings another Super Fan into the...
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Articles

Fingerprints for Investigative Leads – Episode 193

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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...
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Episodes on AFIS

Articles

Error Management – Episode 86

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Glenn and Eric bring in Carey Hall, Penny Dechant, Heather Conner, and Sean Conner for an extra large Double Loop Podcast that...
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Articles

Fingerprints for Investigative Leads – Episode 193

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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...
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Articles

Busey AFIS Article – Episode 83

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Glenn and Eric review a recent article by Dr. Tom Busey, Arch Silapiruti, and John Vanderkolk from Law, Probability, and Risk titled...
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Articles

Melting Point Topics – Episode 194

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Eric Ray shares some big news and then shares a story about the dictionary. Glenn Langenburg brings another Super Fan into the...
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Conferences

Episodes from Forensic Conferences around the world