Writer:	Richard Catalani, David Rambo
Director:	Kenneth Fink
Star:	Robert David Hall (Dr. Al Robbins (episode 47+, recurring previously)),  Eric Szmanda (Greg Sanders (episode 47+, recurring previously)),  Jorja Fox (Sara Sidle (episode 2+)),  Paul Guilfoyle (Captain Jim Brass),  George Eads (Nick Stokes),  Gary Dourdan (Warrick Brown),  Marg Helgenberger (Catherine Willows),  William Petersen (Gil Grissom)
Recurring Role:	Jose Zuniga (Detective Cavaliere),  David Berman (David Phillips),  Archie Kao (Archie Johnson),  Marc Vann (Conrad Ecklie),  Wallace Langham (David Hodges)
Guest Star:	Sebastian Roché (Josh Frost/Moriarty),  Rod McLachlan (Nelson Oakes/Dr. Watson),  Ted Rooney (Dennis Kingsley/Sherlock),  Catherine Dent (Kay Marquette/Irene),  Lisa Waltz (Jean Kingsley),  Gus Buktenica (Player),  John Krasinski (Lyle Davis),  Steve Heinze (Biker)

Music:
Somewhere Nowhere: Cinephile (edit) The segments recreating the Sherlock murder are shot in a visual style remeniscent of movie photography from the turn of the century, Sherlock Holmes' native time period. (edit) The original airdate for this episode was the 151st anniversary of the widely accepted date of the birth of Sherlock Holmes. (edit) Originally titled "Who Shot Sherlock Holmes?" (edit)

(Nick gets in Jeep to test if the brakes are working, Warrick behind him to push the Jeep)
Warrick: You ready?
Nick (smirking): Yeah, put your back into it. (edit) Kay Marquette: You see, Dectective, (with english accent) Denny would've wanted his murder to be the perfect puzzle. (edit) (After they made a ballistics gel dummy to prove a theory)
Catherine: So I know that I've never said this to you guys before, but... hide the evidence.
Nick: Thanks for having our back.
Catherine: We're a team, guys.
Warrick: Since, we're a team are you gonna help us clean up?
Nick: Yeah. (looks toward Cath)
Catherine (laughing): No. I'm the boss. (walks out) (edit) Grissom: Deerstalker cap, violin, Meerschaum pipe, even a Persian slipper with tobacco stuffed in the toe, I imagine. All in all, meticulous recreation of 221-B Baker Street: residence of the world's greatest detective, Sherlock Holmes.
Brass: Also known as Dennis Kingsley, delivery guy. What do you think?
Grissom: Ask Greg. It's his case. It's his final proficiency test. Emphasis in the "final".
Brass: Okay, Dr. Watson, run it. (edit) Brass: You know, I think you'd better drop the accent.
Josh Frost (Prof. Moriarty): I can't. I'm English. (edit)

Greg passes his final proficiency test to fully become a CSI. (edit) At 29:11 the reflection of the camera and light reflection board is visible in Warrick's glasses. (edit) When Warrick and Nick are looking round the jeep they find the victim's wallet. Both are wearing gloves. They then hand this to Detective Cavellere who is obviously not wearing gloves. The ID is in there, but his cash and cards are gone, so isn't this actually a potentially vital piece of evidence that everyone should have handled with gloves in order not to contaminate it? (edit) When "Sherlock" (Denny Kingsley) is shown playing the violin, the song he is playing is Meditation from the opera "Thais" by Jules Massenet. (edit) When Sara is looking at the victim's laptop, it is clearly an IBM Thinkpad, but during the close up of the monitor, the label on the bezel is Dell. (edit)

Catherine: Watch it wiggle see it jiggle. I get it.

Said as they are about to test their theory of electrocution with 'gelatine man'. These words are an allusion to the text of an advert for Jello from the 1980s. (edit) The name of the character who is Sherlock in the episode is Denis Kingsley. This is a nod to Arthur Conan Doyle, creator of Sherlock Holmes, who had five children, two of whom were named Denis and Kingsley. (edit) The method in which the murder weapon was concealed closely parallels the Holmes story "The Problem of Thor Bridge" by Sir Arthur Conan Doyle, first published in 1922. (edit) Greg: 7% solution of cocaine; morphine
In the Holmes stories, Sherlock used a 7% solution of cocaine, during times of boredom.

The 7% Solution was later a movie in the 1970's, that dealt with Holmes's growing addiction to cocaine, and his treatment at the hands of Sigmund Freud.

And, in one of the stories, Holmes was found, by Watson, to be in an opium den, while in disguise. Whether or not he was taking opium is up for debate. (edit) Grissom et al: n/a Throughout the episode, there were many references to the various items relating to Sherlock Holmes. Among the items of interest are: The violin, the Deerstalker hat, the famous Meerschaum pipe, the 19th century syringe, the Persian slipper with tobacco in the toe.

Other Holmes references include mention of Reichenbach Falls, where Holmes found Professor Moriatry and met his (supposed) death. (edit)