Send us Fan Mail

In Episode 113 of Forensics Talks, I speak with Dr. Rasmus Rosenberg Larsen from the University of Toronto about psychopathy, forensic psychology and the scientific basis behind one of the most widely recognized concepts in criminal behaviour. Drawing on his book Psychopathy Unmasked: The Rise and Fall of a Dangerous Diagnosis, we discuss what psychopathy actually means, how tools such as the PCL-R are used in forensic assessments, and how those assessments can influence decisions involving risk, treatment, sentencing, parole and corrections.

A major focus of the discussion is Dr. Larsen’s critical examination of long-standing assumptions about psychopathy, including whether so-called psychopaths are exceptionally dangerous, incapable of empathy, resistant to treatment, or biologically distinct. We also look at the importance of validation, effect size, null findings and scientific skepticism when forensic concepts are being used to make decisions that can have serious consequences for individuals within the justice system. His book challenges several of these traditional claims and argues that the evidence deserves much closer scrutiny.

Originally aired on October 1, 2026

Send a text

Body-worn cameras have become one of the most important tools in modern policing — not just for transparency, but for investigations, evidence collection, and courtroom testimony.

On this episode of Forensics Talks, I’ll be speaking with Bryan Chiles, Senior Manager of Axon Forensics, about how Axon body cameras are helping shape the future of law enforcement. Bryan has been with the company since 2005 and has played a key role in developing and testing both TASERs and body-worn cameras. Today, he serves as an expert witness in cases involving Axon technologies and works closely with legal and forensic teams around the world.

We’ll talk about how Axon cameras handle authentication, SHA256 hashing, chain of custody, automatic activation, and more — and why these technical features matter when it comes to reconstructing events, reviewing use of force, and building solid cases.

Originally aired on: October 16, 2025

Send a text

In this episode of Forensics Talks, we're tuning in to the science of sound with Henry Vega, Forensic Engineer at JS Forensics Consulting.

Henry will walk us through how dashcam audio recordings can be used to calculate vehicle speed, how tire frequencies are analyzed in real-world crash cases, and how firearm discharges captured on officer bodycams are helping uncover key evidence. We'll also explore his collaborations with experts around the world pushing the boundaries of audio-based forensic reconstruction.

If you’ve ever wondered how much information is hidden in a sound file — this is the episode for you.

Originally aired on: August 7, 2025