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What really happens when forensic science meets real-world investigation? The Evidence Trail takes you behind the scenes of forensic investigations and the evidence that can help solve them.
With over 15 years of experience as a Crime Scene Investigator, host Chris Gee has walked under the police tape and read the stories left behind. Now, as a Forensic Fire Scientist, he's following the evidence into a new world — where every scene has a story to tell.
But he's not always alone. Investigators, scientists, forensic specialists and CSIs join Chris to explore the science, techniques and real-world investigations behind the evidence.
So slip under the police tape, follow the trail of evidence, and see the world through the eyes of a forensic investigator.
Because somewhere in the ashes… the truth is still burning.
Episodes
May 19, 2026
May 19, 2026
21 min
Welcome to Be the Detective, the immersive spin-off from The Evidence Trail.
In this series, the roles are reversed. Instead of hearing the conclusions, you’ll step into the investigation itself. Each episode invites you to follow a case as it unfolds—listening carefully, gathering details, and piecing together the truth from the clues left behind.
These stories are inspired by my own experiences as a crime scene investigator, but there’s a twist: the cases you’ll hear take place in a time before forensic science became the cornerstone of modern investigations. As you follow these cases, you’ll have that modern knowledge at your disposal, highlighting just how vital forensic science has become in solving crimes.
While you listen, you can make notes, track the evidence, and form your own theories—or simply follow along in your head. You can play alone, or work together with friends, comparing conclusions and challenging each other’s instincts.
The question is simple: can you gather the clues, connect the dots, and solve the case before the truth is revealed?
It’s time to step into the scene.
It’s time to Be the Detective.
I'm heading to CrimeCon London 2026 and YOU are invited! Clear your calendar for the 3rd and 4th of October 2026 because the ultimate true crime event is back - bigger, bolder and more gripping than ever. Head to CrimeCon.co.uk to secure your tickets - and don't forget to use my code EVIDENCE for 10% off. Hope to see you there.

May 5, 2026
May 5, 2026
57 min
In this episode of The Evidence Trail, forensic botanist Mark Spencer reveals how plants can become silent witnesses to crime. From analyzing species distribution to tracking regrowth patterns, he explains how vegetation can place suspects at specific locations and times. The episode highlights a remarkable case where a single leaf provided the crucial link needed to solve a murder, demonstrating the surprising power of forensic botany in modern investigations.
I'm heading to CrimeCon London 2026 and YOU are invited! Clear your calendar for the 3rd and 4th of October 2026 because the ultimate true crime event is back - bigger, bolder and more gripping than ever. Head to CrimeCon.co.uk to secure your tickets - and don't forget to use my code EVIDENCE for 10% off. Hope to see you there.

Apr 8, 2026
Apr 8, 2026
48 min
This episode takes you inside the forensic response to the Grenfell Tower fire. Former Metropolitan Police Operational Forensic Manager Andrew Langley reveals the realities of Disaster Victim Identification (DVI), mortuary examinations, and the unseen work carried out to identify victims and support justice.
We also explore the emotional and ethical challenges faced by those on the frontline, the lessons learned from handling one of the UK’s most devastating modern disasters, and the dedication of forensic teams working behind the scenes to bring closure to families and communities.
This might be an upsetting topic for some. Listener discretion is advised.
I'm heading to CrimeCon London 2026 and YOU are invited! Clear your calendar for the 3rd and 4th of October 2026 because the ultimate true crime event is back - bigger, bolder and more gripping than ever. Head to CrimeCon.co.uk to secure your tickets - and don't forget to use my code EVIDENCE for 10% off. Hope to see you there.
May 14, 2023
May 14, 2023
43 min
What is Bloodstain Pattern Analysis? How do bloodstains differ? Is the science in Dexter anything like real life? All good questions, which I hope to answer in this Podcast!
Having trained with experts in the Netherlands and UK, I discuss the basics of BPA and give you some real examples of how this knowledge can be used at Crime Scenes.
A great starting point for anyone about to study BPA, or just for those who are curious!
For more info, please see:
Nov 14, 2022
Nov 14, 2022
29 min
This podcast may be upsetting to those who have lost people close to you recently. I discuss the facination around death, the trauma that comes with it, and how we assist in an autopsy/post mortem.
Mar 26, 2022
Mar 26, 2022
30 min
We begin a new season of The Crime Scene Investigator! In my first episode back behind the mic, I discuss what I've been up to recently, the news surrounding my department, and my first ever court case.
If you have any questions for me, please head over to Twitter and message me - @CSIChrisGee
Jul 12, 2021
Jul 12, 2021
26 min
I go into more depth about DNA than I have previously, and discuss methods on how to recover DNA samples from Crime Scenes.
May 10, 2021
May 10, 2021
24 min
There are so many myths and expectations regarding fingerprints, and I aim to answer these in this podcast! Hope you enjoy it and learn a few things.
Apr 3, 2021
Apr 3, 2021
26 min
Ever wondered how to recover an item as evidence, wonder no longer! In this episode I discuss the techniques we use to package some weird and wonderful exhibits. I feel I've said wonder too much...
Mar 10, 2021
Mar 10, 2021
44 min
I catch up with previous guest Hayley and discuss the top 5 types of forensic evidence we collect, their positives and limitations, and which piece of evidence would be most useful in a court room.
