The New Detectives - Season 2 - Eps 3: 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.
About The New Detectives

Title: The New Detectives
First Air Date: 1996-06-10
Last Air Date: 2004-10-31
Status: Canceled
Rating: 7.9/10 (from 7 votes)
Language: EN
Seasons: 9
Total Episodes: 121
Network: Discovery
Genres: Documentary, Crime, Drama
Production Companies: New Dominion Pictures
Synopsis
The New Detectives: Case Studies in Forensic Science is a documentary true crime television show that aired two to three different cases in forensic science per episode.
Cast

Gene Galusha
Narrator