Got Murder? - S3-E12
Continuity mistake: When Catherine is looking through the contents of the birds nest, she takes out the teething ring and places it on a pile on the left. When Gil comes in and asks her what she has, the shot shows the nest and the teething ring is back in it.
Plot hole: A central plot device in this episode is that there is no six letter word made up of the letters EXVIN, so the murdered man cheats at the word game by playing a word he knew to be inadmissible - exvin, a wine connoisseur who no longer drinks. Since he is supposed to be a stone cold killer player at this word game, don't you think he would have thought of Vixen? Sara Sidle points that word out later - why wouldn't a world champion word game player have figured it out, using a safe, common word and avoiding a possible challenge?
Suggested correction: If you watch the episode (timecode 00:36:20), in the flashback it shows exactly why he did not use vixen. There were 2 spaces between the "x" and the "n" on the board, so Adam played a bluff and used the fake word exvin.
Nick Stokes: There's a sucker born every minute.
Gil Grissom: Yep, and they all come to Vegas.
Trivia: For those who don't (or can't) read American Sign Language, at the end of the episode, Grissom says to Dr. Gilbet is that his mother lost her hearing when she was eight years old. He once asked her what is it like to be deaf, and she told Grissom (who loved to swim) that it was like being underwater. She also taught him that being deaf does not make one inferior to others. Dr. Gilbert then replies that she teaches her students the same lesson.
Question: After finding out that Ty was committing insurance fraud, why did Grissom walk away instead of arresting him?
Answer: He doesn't have the authority to arrest him - when anyone is arrested in the show, a police officer does it. Also he tells Ty that he is going to be submitting his case findings to Ty's insurance company, who would no doubt contact the IRS, who then would have him arrested for fraud etc.