Other mistake: In episode "The Good, the Bad and the Dominatrix" When the son goes to the bank he tells the manager that there was a million dollars in that account last week, there was 843,508.00 taken out leaving a balance of 31,053.86. That only adds up to 874,561.86. Not a million dollars. He doesn't say close to a million dollars He says there was a million dollars in that account.
Other mistake: When Grissom goes to the crime scene to investigate, he finds the worker's drill hanging over the edge, still plugged in. Dropping the drill (35-45 pounds) 5-6 feet (the height of the worker) over the edge would have ripped the plug from the outlet and cause the drill to fall all the way to the ground with the victim. (Grissom barely puts any effort into unplugging the drill when he inspects it).
Other mistake: Episode 18 Season 5 "Spark of Life": Late in this episode, the CSI crew is sitting around discussing the case. Sarah Sidle summarizes the facts in the case, including making the comment that Tara Matthews was attacked by the truck driver "just before her death"; in actuality, while Tara was severely burned, she remained alive in the hospital throughout the entire episode.
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.
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.
Other mistake: "A Bullet Runs Through It," part 1; while Catherine is in the lab reviewing the audio tape of the police call to dispatch, the dispatcher claims that the first call she received was at 6:34. First, her lips do not match what she is saying and then when they show the screen with the audio playing, the screen reads "first call 5:43."
Other mistake: Just after they arrest the Janitor, they are walking out of the building past the employee's. The girl sitting at her chair is not actually typing on her keyboard, her fingers never even press on the keys and her screen-saver is displayed on the screen. (00:37:15)
Other mistake: There is no way a body can be pulled out of a grave the way they showed. It would be a pretty tough trick to pull off with a 6', 200lb piece of lumber and virtually impossible with a body. If it was a solid, non-flexible piece of material, pulling on the rope would drag the item until it hit a ledge and then flip it out of the grave. The body is very flexible, especially at the waist. You'd have to pull a body from above, which they end up doing in real life.
Other mistake: Stokes tells "Michaelangelo" he is looking for a blue Honda, blue rims, blue tint. The picture Michaelangelo shows Stokes and Willows is an Acura RSX, not a blue Honda. (Note: The red Honda that the victim was driving is not the one that Stokes is looking for.) Just because the two car brands are owned by the same parent company does not mean that they are interchangeable when describing them. You certainly couldn't call a Cadillac a GM and not be considered wrong even though they are both made by the same parent company (GM).
Other mistake: Season 10, episode 4 "Coup de Grace": When Nick is doing the phenolphthalein test on the q-tip, it turns pink immediately and starts to overflow pink coloring all the way down the side of the stick, which is not how that test works. Normally it takes a few seconds and only turns color around where the blood is.
Other mistake: When CSI Brown is with the mother of the alleged victim, he shows her a picture of the deceased and asks if she knows her. The name on the picture is the one the mother gives (Simone Molinez). How would the correct name be in the picture if the victim had yet to be identified? (00:17:35)