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Crime Scenes: To Preserve and Protect

Crime Scenes: To Preserve and Protect

Preserving a crime scene sometimes means wrestling a grieving man to the ground so he can't disturb the DNA evidence on his murdered wife.

February 1, 2010

DNA: Tales of the Double Helix

DNA: Tales of the Double Helix

Blood stains are really hard to get out. And today, with the advent of DNA matching, it’s even harder for criminals to mask their violent deeds, as just trace amounts of blood and other biological materials can put investigators hot on their trail.

February 1, 2003