Check out the exclusive clip titled 'Contaminating the Evidence' from the highly anticipated CBS crime drama series, CSI: Vegas Season 3 Episode 4. Featuring the talented CSI: Vegas cast including Marg Helgenberger and Lex Medin and more, this episode promises gripping twists and turns. Don't miss the action! Stream CSI: Vegas Season 3 now on Paramount+!br br CSI: Vegas Cast:br br Paula Newsome, Matt Lauria, Mel Rodriguez, Mandeep Dhillon, Jorja Fox, William Petersen, Marg Helgenberger, Anthony E.