Other mistake: In the flashback that shows Adam Brenner playing his opponent using the word "Exvin", we can see that the X is also used in "Juxtapose". When the opponent adds an S to "Exvin", he is challenged and made to take back his tiles. However, the X would remain where it is because it is a part of another word. Since the opponent plays a word using an X later in the game ("Loxodrome"), we know that he must have taken back the X as well. However, that cannot be the case as then "Juxtapose" would not be able to stand without the X. He couldn't play it as part of "Exvin" due to the existence of the word Antothenics underneath Juxtapose.
Suggested correction: I think they were implying that he played a second ex and that's what prompted them to look to see which tiles were missing from the suspects game. Since there were two x's used in the game and there's only X in each set it implies they thought someone was bringing tiles in from another set, and then they looked at the suspect set to see if any tiles were missing.
Revealing mistake: Ribbons is talking to Grissom and Nick in the autopsy room, and the latest post autopsy female lies on the table. Grissom says, "He choked her unconscious, and brought her..." and when the shot faces her head and shoulders, watch her neck - you can see the veins in her neck pumping. (00:06:45)
Cool Change - S1-E2
Revealing mistake: The male corpse's eye is fluttering as his arm is examined. (00:10:30)
Continuity mistake: While Kelly is being interrogated in the interview room by Nick, her hair changes between shots. Close-up it hangs loose. In the wide shots both sides are tucked behind her ears.
Factual error: The CSI crew set up an experiment. They put some chloroform into the tire, set the bus on a dynamometer (or some other testing platform) and wait for the tire to fail. The tire fails in the experiment in the exact same amount of time as it did in real life. Problem: They have no idea how much chloroform was used and it would be impossible to match it by luck. More chloroform used would equal quicker failure. Then, there is the heat. The tire traveling over the hot asphalt road would build heat faster then on their testing platform. More heat would mean a quicker failure, too.
Continuity mistake: Outside the brothel, there is an orange post next to the old man's trailer. Suddenly, it is gone in the second scene where the old man is approaching. In the third scene there is one again, but this time it is an orange cone instead of an orange post.
Factual error: The CSI staff repeatedly refer to the murder weapon as a tire iron. It is a crow bar or demolition bar. It had a nail pulling head, not a socket for the lug nuts.
Revealing mistake: At the end of the episode when Grissom and Archie are listening to the tape from Nick's kidnapping, the screen shows the audio being played. While the audio obviously changes, the lines that sketch what the sound would "look" like don't. In order for the sounds to be different, the lines would have to change too.
Other mistake: This episode has four teenagers beat a contemporary to death with hammers, following a practice session with a pile of water melons. The boy is beaten to death sometime during the weekend, - probably on the Saturday.Prior to that is the practice session with the melons, which must be the Friday evening at the latest. The room with the melons is searched on a school day, Monday at the earliest. Yet the melons, in all that Nevada heat after lying around for three days, are still fresh looking, and there are no flies or other insects swarming over the juicy remains.
Continuity mistake: When Grissom enters the cage in which the woman is found, he goes to the wastebasket to examine the pen that rolled on the floor. As he first picks it up, he grasps it right at the point where the black grip section meets the gray barrel section. As the shot changes and he continues bringing it up to examine it, he is now grasping it near the end of the gray barrel. As it is supposed to be a continuous shot (conversation is uninterrupted the entire time), there is no time for him to change his hand position.
Revealing mistake: The dead baby is obviously a doll.
Continuity mistake: Supposedly, Paul Millander was 10 years old when his father was killed. A newspaper report read by Sara in 1x08(Time 39:45) says this. It also says that his father died August 17th, 1959. In 2x13(Time 43:18), in the last scene, Grissom looks at Paul's birth certificate. It says that Paul was born August 17th, 1956, which would mean that he was actually 3 years old when his father died. (00:39:45 - 00:43:15)
Continuity mistake: Nick is eating a hot dog when he's handed a warrant. Depending on the camera angle, he goes from taking a bite out of the hot dog to holding the hot dog in one hand and the warrant in the other simply with camera angle changes.
Visible crew/equipment: The prostitutes take turns telling their stories to Captain Brass in their dressing room. But as the long-haired brunette lady tells her story from a distance, you can see a cameraman in the mirror behind her waiting for his turn to film. When she is shown close up, you can see him closer in the mirror, filming.
Big Middle - S5-E16
Continuity mistake: Season 5 Episode 16 "Big Middle" Sara Sidle marks a triangle on a bed sheet around evidence and then proceeds to cut along the inside of the triangle lines in order to remove the evidence from the sheet. In the next shot, Sara is shown removing the cut out from the sheet, which now has been cut along the outside of the triangle lines.
Revealing mistake: At the start when the camera pans away from the dead body, the "D.B." swallows when he's supposed to be dead.
Continuity mistake: There are some major continuity errors in the rescue scene at the end: First, the loader is missing from the side of the grave during several of the shots. Second, the rope changes position. The CSI crew is shown manning the rope, which is running parallel to the ground, ready to pull Stokes out of the grave. (There is a physics problem with this anyway.) The next shot is a close up of Grissom and Brown and the rope is now going up at a severe angle. Brown can barely reach it. (The stuntman can only be pulled out from above, the aforementioned physics problem, and the rope is leading up to the rigging.) Third, immediately after the stuntman is pulled from the grave and right before the explosion, there is no one and nothing near the grave. The loader ends the scene right where it started: on the edge of the grave, bucket up, lights on.
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.
Homebodies - S4-E3
Plot hole: Catherine is picking up the gun in the backyard. It is an unfamiliar weapon. She picks it up by using the loop around the trigger and pointing it towards herself. She then checks the clip, but never checks the chamber.
