Forensic Factor

Forensic experts reveal the clues nature leaves behind on a human corpse.

Crime fighters map the bizarre behaviour of serial killers.

From the tips of their ears to the soles of their feet, criminals are betrayed by the clues their own bodies leave behind.

Forensic science has developed a world of techniques for tracking and identifying weapons; blood spatter, explosive residue, ballistics and trauma wounds tell crime scene investigators their deadly story.

Fire, water, earth - killers call on all the elements in their attempt to cover up their crimes; but even a body burned to ashes, sunk deep into the sea, or reduced to fragments will still tell its forensic tale.

The high-tech tools of the forensics trade can use a suspect's voice to reveal a lie, unearth the crucial moment of crime, buried in damaged video, or isolate a guilty face in a crowd.