Factual error: Season 3, episode 49 (Not What It Looks Like). Breaking glass with sound is possible, but would not work as depicted in the episode. First, in order to break the glass, you have to force the glass to vibrate at its natural frequency - that is, the frequency at which it would vibrate if it were tapped. Each piece of glass has its own natural frequency, depending on a range of factors including size, chemical makeup, shape, hardness, and manufacturing methods. No single frequency would shatter all the glass in the store at the same time. Finally, in order to break the glass the piece has to be closed-ended. You can't shatter a plate of glass with sound (nowhere for the sound waves to resonate). Please see http://www.madsci.org/posts/archives/feb98/887203231.Ph.r.html

Continuity: Season 3, Episode 11 (Raising Shane) Just as Casey is caught we see Detective Flack tackle him to the ground. The moment before Danny jumps on top of Casey we see that he is lying on his side. Yet when the camera changes position he is lying on his front.

Plot hole: In episode "Silent Night": When the mother checks on the baby in the first scene, you see the killer knock over the snow globe. The mother wouldn't have heard it since she was deaf, but she would have felt the vibration on the hardwood floor from the heavy object hitting the floor.

Plot hole: In episode "And Here's To You, Mrs. Azrael": They state that the heart monitor on "Nicole" never showed any movement at all as she was being smothered, because the killer swapped it out and put it on herself. When Mrs. Rollins was smothering her daughter thinking it was Nicole, her heart rate would have raced and her blood pressure would have gone up a little as she strained to hold the bag over her face. The monitor would have picked that up.

Continuity: In Episode "Happily Never After": In the opening when the CSI team is looking at the puncture wound of Fiona Chisolm, there is no blood coming from the wound. It is actually mentioned that there is no blood. Then it is determined that she was dead for about 6 hours, but now there is an L-shaped blood drip pattern to the chest wound.

Plot hole: In the episode "Right Next Door," Mac was showing the air duct and saying that the fire would have traveled down the vent to the vacant apartment. The vent was shiny and new looking when it should have been filled with black soot with the amount of fire that traveled down it.

Factual error: Season 3 Episode 54 (Murder Sings The Blues). Several police and crime lab personnel are in the train car looking at the dead girl and discussing the possibility that this death could be the result of a bio-hazard or chemical hazard. Later in the episode, ebola and anthrax were discussed. These are level 3/4 hazards which require Hazmat suits and oxygen supplies. At the very least, there should have been very serious access control to the scene. None of them are wearing any type of protective gear except rubber gloves, and there is nothing more than standard crime scene access control. Contrast this with a scene later in the same episode where 2 characters in the lab are wearing respirators when dealing with the dust and other stuff from vacuum cleaning system. If the CSI team or the police really suspected that there was a biohazard or dangerous chemical agent present at the crime scene, then their behaviour was quite cavalier under the circumstances.

Continuity: In episode "Some Buried Bones": At the end when Reed is hugging Mac, Reed's arms go from being low across Mac's arms to around his shoulders between shots.

Factual error: 2-20 Run Silent, Run Deep - They are suppose to be in Giants Stadium in NJ, but you can tell by the stadium configuration and color of the seats that they are in the L.A. Coliseum.

Factual error: "The Thing About Heroes" When Mac has a flashback to an incident when he was 14 years old (in the 1970s) and gives the money to Bobby Toole the twenty-dollar bills all have the large 20 on the back side. This was not issued until 2004.

Continuity: In Episode 4-03 You Only Die Once In the beginning of the episode when Flack calls in the address of the apartment he calls in the address of 260 W 72nd Street, however, when the burglar is shown repelling down the side of the building the address on the front of the building is 535.

Audio problem: When Mac and co. enter the basement of the house in Queens (the one where the third woman was found) the record player lifts off its needle and moves to another spot on the record, cutting off the sound for a second. However, the music starts again slightly before the needle hits the record.

Continuity: When the girl first arrives at the party, she places her hand on the white car, right above the grille. Later, when Stella takes the photo, the hand print has moved over to the side.

Continuity: In autopsy, Mac, Stella and Dr. Hawkes M.E. are examining a skeleton that was found on a bus. As Mac asks about cause of death, Sheldon points to a skull fracture that is evident above the skeleton's left eye, a fracture that wasn't there when the skeleton was first discovered sitting in the back of the bus.

Continuity: Stella prints the pictures of 6 suspects. Mac takes them all, holds one up and says : "That's the man we're looking for." But only 5 pictures comes out of the printer - and the picture of the suspect isn't among them. Mac holds up the picture of an black guy with afro hairdo - the suspect is white with rumpled black hair. Where does his picture come from ?

Visible crew/equipment: At the beginning when the robot is lifting fingerprints from the suitcase, you can see a person walking around in the background-something not likely when there is a bomb threat.

Factual error: In the episode Recycling the woman with the knitting needle stated that she knits her dog things like the blanket he is sitting on. The blanket (a granny square blanket) is a crocheted blanket not knitted.

Plot hole: The CSIs catch a murder suspect putting down a drink can when reviewing security footage of a robbery, and immediately realise they didn't see it at the scene so assume one of the first cops on the scene must have removed it. Thing is though, the murderers shot out the security camera before the actual shooting occurred, meaning there was loads of time off-camera for the killers to take the can with them, but the CSIs never even consider this - they jump to the conclusion a cop took it even though there's no actual evidence for that.

Factual error: They are suppose to be in Yankee Stadium investigating the death of the man they found in his truck. But they are not in Yankee Stadium, the color and configuration of the seats are not correct, they are in the L.A. Coliseum.

Factual error: The plot is about a mosquito who stung the murderer. Although Gary Sinise mentions (correctly) that only female mosquitoes bite, the one caught alive on the table is a male mosquito (look at its antennae). All other mosquitoes used in the episode are female.