Abra Cadaver - S3-E5
Trivia: This episode featured a guest appearance by Tom Noonan. Noonan and series star William Petersen played villain and hero, respectively, in the film "Manhunter."
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.
Trivia: The man who flirts with Catherine at the bar is played by Marg Helgenberger's husband, Alan Rosenberg. According to Helgenberger on the DVD commentary, Rosenberg had difficulty treating her the way his character does, even though it was a fictional encounter.
Last Laugh - S3-E20
Trivia: Series creator Anthony Zuiker has a cameo appearance as a heckler in the episode's final scene.
Up In Smoke - S6-E17
Trivia: When Catherine and Sara find the girl's body in the chimney, Sara references a conversation they had earlier. But instead she calls the Poe story "The Tale Tell Heart."
Trivia: In the scene where Simms translates the alien language that Hodges spoke to her earlier in the show with the Vellikon translator on the Astro Quest website, the alien alphabet that is shown on the computer screen is the same alphabet used in the Star Wars Universe, not Star Trek, which the show is modeled after. (00:41:15)
Trivia: The plot of this episode is similar to the plot of "Erin Brockovich" - a water supply being contaminated. Ecklie even calls Catherine Erin Brockovich at one point. Marg Helgenberger, who plays Catherine, was in "Erin Brockovich" as Donna Jensen, one of the people who became sick due to the contaminated water.
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.