Double Helix

May 6, 1997
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The New Detectives - S2 - E3

Double Helix

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.

The New Detectives: Season 2 - 13 Episode s