Visible crew/equipment: When Warrick is talking to Greg in the DNA lab comparing Brass's DNA, the boom mic is reflected on the back wall.
Dead Ringer - S4-E20
Audio problem: When Sarah is interrogating the police woman, there are some shots from the left side of the woman when she is speaking and her mouth/jaw movement do not match the words that she is saying.
Crow's Feet - S5-E4
Plot hole: Two women die after a medical error occurs after undergoing an "anti-aging" medical procedure. A 30% solution of hydrogen peroxide is given intravenously instead of a 3% solution. According the the Material Safety Data Sheets (MSDS) a 30% solution is extremely corrosive and will blister skin on contact. 1) How did the women not bolt upright screaming as this extremely corrosive solution was pumped throughout their veins. 2) How did they not die in the clinic instead of the hours after as depicted in the show? Even in the CSI crew little experiment, the red blood cells immediately burst when exposed to the 30% solution.
Revealing mistake: After Grissom finds Isabelle Millander dead in her chair, he walks towards the bathroom. When the shot changes, you can see her shift her legs even though she's supposed to be dead.
Continuity mistake: The short-haired brunette wannabe Lab Tech has a disappearing and reappearing necklace during her conversation in the lab with Warrick.
Factual error: In Kiss-Kiss,Bye-Bye, Stokes and Brown are watching surveillance footage when a Trans-Am pulls up on screen. They are able to get the license plate number and when they pull it up, the computer says it is a 1978 Trans Am. When looking at the rear end of the car on screen, it is from a 1979-1982 model where the licence plate was placed on the rear bumper. The 1978 model had the license plate mounted between the taillights.
Continuity mistake: When Grissom and Catherine are looking at Rebecca McCormick's dead body, her mouth is closed in the first two shots, and when we see her again it's open.
Continuity mistake: When Grissom, Brass, and Greg go to the house of the guy in the Polaroid, Brass picks up a credit card from a table. First, he is holding it by his middle finger and thumb from the back, then the shot changes to a close-up and he is holding it with his index finger and thumb along the sides. Then, we return to the previous angle and he is once again holding it with his middle finger and thumb from the back.
Room Service - S6-E2
Continuity mistake: When Warrick is in the hotel room at the start, the corpse's eyes alternate between open and closed.
Continuity mistake: When Grissom is on top of the box, talking to Nick, and he tells Nick to put their hands together, you can see that from shot to shot, the alignment of their hands changes. In one shot (from Nick's angle), Grissom's hand is higher than Nick's, as well as Grissom's index finger lines up with Nick's middle finger. In the next shot, their hands line up perfectly. The alignment changes throughout those few shots.
A Bullet Runs Through It (Part 1) - S6-E7
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."
Factual error: They talk about the type of tubes used in HIV tests. There are no special tubes specific for HIV testing alone. It is one generic tube that can be used for a multitude of tests including HIV. It did not seem as though Greg knew that she had gone for HIV testing before he ran the tests, so he should not have concluded that it was the type of tube used for HIV testing, only Catherine or Warrick should have made that connection.
Post Mortem - S7-E7
Continuity mistake: When the woman first falls through the glass, she obviously breaks it all, toward the bottom of the window. Then her position changes and there is cracked glass in place. We then see several more shots of the dead woman, none of which have matching blood spatter or position of her body.
Continuity mistake: In the scene where Nick and Catherine are interviewing Walden, Catherine's fringe moves from right to left and back to right. This continues throughout the interview.
Continuity mistake: As Brass interviews people at the whorehouse, the curtains switch back and forth several times between shots: pulled back with no light, then stretched out with the sun behind them. They keep switching back and forth.
Continuity mistake: As Nick and Warrick are assessing Wendy Garner's travel path and find that there are 14 minutes unaccounted for, the screen says "Wendy Jones' House". Her last name is Garner, her old last name was Clancy, and her fiancé's last name is Lanner, therefore it makes absolutely no sense to have "Jones" on the screen.
Audio problem: When Nick and Warrick find the dead man's flying equipment, Nick says "Bingo" but his lips don't move.
Continuity mistake: Sam's matchbox, in the interview room, changes from face-forward to back-forward several times.
Continuity mistake: When Grissom is in the horse stall, one shot shows the door closed to Grissom's back. Cut to the next shot (a closer shot through the door) and it's open.
Factual error: Sara calculates the time needed to sabotage the tire at a minute to a minute and a half. That is, remove the valve core, allow the majority of the air to escape (cannot pour anything into the tire while the air is escaping) pour in enough chloroform to sabotage the tire, replace the valve core, and air the tire to pressure. Even with an industrial air compressor, it would take over 2 minutes to air that tire to full pressure.
