The New Detectives

Season 2, Episode 3: Double Helix

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With DNA analysis just a few microscopic cells found at a crime scene can be used to convict a killer. Forensic scientists can analyze droplets of blood, hair fiber, or a piece of chewed gum to determine the identity of a victim or killer -- or to prove innocence.

All Episodes - Season 2

Mind Hunters
Episode 1
Mind Hunters
 Camera Clues
Episode 2
Camera Clues
 Double Helix
Episode 3
Double Helix
 Web of Clues
Episode 4
Web of Clues
 Faces of Tragedy
Episode 5
Faces of Tragedy
 Without a Trace
Episode 6
Without a Trace
 Burning Evidence
Episode 7
Burning Evidence
 Short Fuse
Episode 8
Short Fuse
 Death Grip
Episode 9
Death Grip
 Signed in Blood
Episode 10
Signed in Blood
 Witness to Terror
Episode 11
Witness to Terror
 Trial of the Century
Episode 12
Trial of the Century
 Deadly Target
Episode 13
Deadly Target
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