CSI: Crime Scene Investigation

Season 4, Episode 23

Episode Title: Bloodlines

Air Date: 2004-05-20

Overview:

A casino employee is beaten and raped on her way home from work, but she survives and identifies her attacker. Unfortunately, a DNA test sets him free and Grissom must wrestle with whether evidence can ever lie. Later, Grissom comes to the rescue of a coworker who ends up on the other side of the law