Csi Las Vegas 5x18 [ High-Quality ]

The episode you are referring to is Season 5, Episode 18, titled " Spark of Life ," which first aired on March 31, 2005. Episode Summary

: How the show's portrayal of forensic science influences real-world juror expectations and investigative procedures. CSI Las Vegas 5x18

The "paper" or core plot of the episode involves a complex investigation into a fire at a construction site: The episode you are referring to is Season