CSI: Crime Scene Investigation (season 7) CSI: Crime Scene Investigation (season 7) The seventh season of "" premiered on CBS on September 21, 2006 and ended May 17, 2007. The series stars William Petersen and Marg Helgenberger. Catherine heads to a small town in Nevada ("Leaving Las Vegas") as Grissom and Sara continue their affair ("Living Doll"), in the seventh season of "CSI". Supervised by Grissom and Willows, the Las Vegas Crime Scene Investigators face both personal and professional challenges as Grissom says goodbye, and new CSI Michael Keppler joins the team ("Sweet Jane"), as they investigate the bizarre, the brutal, and the unprecedented, including a
CSI: Miami CSI: Miami CSI: Miami (Crime Scene Investigation: Miami) is an American police procedural drama television series that premiered on September 23, 2002, on CBS. Starring David Caruso as Lieutenant Horatio Caine, Emily Procter as Detective Calleigh Duquesne, and Kim Delaney as Lieutenant Megan Donner, the series is the first direct spin-off of "", "transplanting the same template and trickery — gory crimes, procedural plot and dazzling graphics — into [a new city] while retaining the essence of the original idea". "CSI: Miami" is executive produced by Carol Mendelsohn, Anthony E. Zuiker, and Ann Donahue, with the latter acting as show-runner.