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.
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.
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.
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.
Audio problem: When Nick and Warrick find the dead man's flying equipment, Nick says "Bingo" but his lips don't move.
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.
Continuity mistake: Sam's matchbox, in the interview room, changes from face-forward to back-forward several times.
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 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.
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.
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.
Random Acts of Violence - S3-E13
Plot hole: While searching through the dead computer guy's CDs Nick finds a CD supposedly burned that night, containing data gathered at the time of death, but by the time the CD was burned the guy would have already been dead, so who took it out of the computer and filed it away?
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.
Continuity mistake: Season 5, Episode "Grave Danger" (parts 1 and 2); there are a number of shots of Nick in the grave which don't match what the CSI team see via webcam. For example when he is speaking into the tape recorder he is holding it above his head from the view inside the grave, but from webcam he is holding it further down.