Immortality (CSI: Crime Scene Investigation) Immortality (CSI: Crime Scene Investigation) "Immortality" is the two-hour series finale of "" aired on September 27, 2015 on CBS. When a suicide bomber detonates his vest on the floor of the Catherine Willows-owned Eclipse casino, the FBI special agent returns from Los Angeles to join the investigation. Gil Grissom, meanwhile, working to preserve sharks in international waters, is arrested for trespassing at the Port of San Diego, and D.B. Russell offers Sara Sidle the chance to supervise the local investigation into the bombing. Sidle, who is vying for the position of director of the Las Vegas Crime Lab, is
Crime scene scene investigation unit arrives on scene, being sure not to touch anything, an initial walkthrough is performed. This walkthrough helps the investigators get an understanding of what kind of crime has occurred. The unit notes on the presence of potential evidence and devises a plan for processing the scene. A second walkthrough is performed for the purpose of documentation. The unit will take pictures and draw sketches of the scene. Sometimes videos are taken to ensure every detail of the crime is documented. After a thorough documentation has been conducted, the CSI unit carefully collects all items that could be