SHOW / EPISODE

Ep 162: At Your Fingerprints- The Brandon Mayfield Case

Season 4 | Episode 162
35m | Jul 25, 2026

Fingerprint analysis has been called the gold standard of forensic science for more than a century. It's helped solve countless crimes, identify victims, and exonerate the innocent. But what happens when one of the most trusted forms of evidence points investigators in the wrong direction?

In this episode, we're exploring the fascinating history of fingerprint identification. Along the way, we'll uncover the remarkable science that makes your fingerprints uniquely yours—and examine the shocking case of Brandon Mayfield, the Oregon attorney whose life was turned upside down after the FBI confidently declared his fingerprint matched evidence from one of the deadliest terrorist attacks in modern history. Cheers!

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Sources: https://nij.ojp.gov/topics/articles/history-and-evolution-latent-fingerprint-development

https://www.fbi.gov/history/famous-cases/fingerprints-and-other-biometrics

https://onin.com/fp/fphistory.html

https://www.science.org/content/article/why-identical-twins-dont-have-identical-fingerprints

https://www.nist.gov/news-events/news/2024/01/how-fingerprints-form-new-study-may-explain

https://nij.ojp.gov/topics/articles/latent-fingerprint-processing-guide

https://www.crime-scene-investigator.net

https://projects.nfstc.org/fse/07/07-01.html

https://www.moma.org/collection/terms/ink

https://www.dickblick.com/learning-resources/how-to/the-history-of-india-ink/

https://web.prm.ox.ac.uk/bodyarts/index.php/temporary-body-arts/cosmetics/82-lamp-black-tool-india-19th-century-.html

https://psap.library.illinois.edu/collection-id-guide/inkothermedia

https://health.clevelandclinic.org/activated-charcoal

https://oig.justice.gov/reports/plus/e0601/final.pdf

https://www.fbi.gov/history/famous-cases/brandon-mayfield

https://www.nytimes.com/2006/01/11/us/us-settles-with-man-held-in-madrid-bombing-case.html

https://www.innocenceproject.org/how-confirmation-bias-can-lead-to-wrongful-convictions/

https://www.propublica.org/article/forensics-science-bias-criminal-justice

https://www.nist.gov/feature-stories/addressing-cognitive-bias-forensic-science

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6191660/

https://www.ojp.gov/pdffiles1/nij/grants/232082.pdf

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