The truth cannot hide...

How to Spot a Psychopath

Psychopaths are far more commonplace than you would think. In my last blog, I wrote about a burglary suspect who reminded me of Dennis Nilsen, who was convicted in 1983 of murdering 15 young men. He kept the bodies for weeks, eventually dismembering them, burning… Read more


Burglaries – a short introduction

By Dave Barclay When attempting to retrieve evidence at the scene of a burglary, the CSI or forensic scientist needs to mentally step through what the burglar did, thinking all the time about points of contact and what evidence they might have left. In distraction burglaries,… Read more


Writing collaboration – how does THAT work?

A.D. Garrett is the writing collaboration between Dagger Award-winning novelist Margaret Murphy and forensic scientist, Professor Dave Barclay. Together, they write forensic thrillers. It all began in 2008, Liverpool’s year as Capital of Culture. The city hosted the BA Science Festival, and The Macaulay Institute wanted to… Read more



Basic Principles of Forensic Science

Basic principles of forensic science By Dave Barclay Prof. Edmund Locard wrote in various papers and books published around the time of the first world war that every contact leaves a trace. This is also called Locard’s exchange principle, and refers to the transfer of… Read more


Hairs and fibres

Hairs and fibres by Dave Barclay Hairs and fibres are the most commonly transferred materials during physical contact between two people. The closer and more long lasting the contact the greater the chance of a two way transfer, which provides the strongest evidence. This means… Read more


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