Mind Games - S3-E3
Revealing mistake: When O'Neill starts taking Polaroid photos of Cassidy in the barn, Cassidy's blouse is properly buttoned up, but the second photo O'Neill takes shows Cassidy's blouse is being held together with a large safety pin, then the buttons are intact again. (00:39:10)
Visible crew/equipment: While Ducky and Gibbs are at the crime scene in the field, in the long shot just as Ducky says, "He took a tumble down the hill," the raised camera crane, camera, and camera operator (feet are dangling off the front of the crane platform) are visible at the left side of the screen. (00:04:10)
Continuity mistake: When Gibbs and McGee go to Captain Vetter's home, Gibbs holds up his ID with his left hand in the shot facing Vetter, but the ID is held up in his right hand in the next shot facing Gibbs. (00:17:45)
Forced Entry - S2-E9
Visible crew/equipment: After Tony gives McGee the coffee belonging to Gibbs, when it cuts to inside Laura Rowans' house, just as the Sergeant tells Gibbs, "The perp broke in, tried to rape her, she shot him," the boom operator (wearing a blue shirt) holding the boom pole is reflected on the framed picture's glass. He's visible again when Caitlin and McGee walk in. (00:02:30)
Heart Break - S2-E8
Visible crew/equipment: After Gibbs tells Tony to go down to Forensics to go over the physical evidence, when it cuts to Ducky walking into Autopsy while saying good morning to Jimmy, the reflections of the camera operator and camera are visible on the steel door. (00:34:30)
Visible crew/equipment: While in the morgue, Ducky asks Palmer if his recorder is on, and in the next shot a crew member wearing an orange shirt is visible on the right side of the screen. A few shots later, as Ducky talks about cause of death, we see another crew member on the left side of the screen. (00:08:40)
See No Evil - S2-E1
Visible crew/equipment: While Sandy is helping NCIS by listening to the feed, Gibbs asks her if she can "remember anything else about the train sounds," and in the next shot we can see the reflection of the boom pole/mic (being held overhead) on the steel surface behind Abby. (00:34:05)
Visible crew/equipment: When it's discovered the M60s don't have firing pins Gibbs is pushed toward the green doors, and in the first closeup facing Gibbs the blue crash mat is visible at the bottom of the screen. (00:39:50)
The Truth Is Out There - S1-E17
Visible crew/equipment: During the joint interrogation of all four POS, in at least three shots facing the one-way mirror the reflections of the camera, the camera operator, and another crew member can be seen on that mirror. One example is when Gibbs tells Wong that the tape isn't his. (00:40:00)
Marine Down - S1-E9
Visible crew/equipment: After Gibbs meets with the real Colonel Walsh, when he's back at NCIS Gibbs asks for Morrow's help to gain access to records, and in the overhead shot a crew member's leg (wearing jeans and a sneaker) is visible on the left side of the screen, directly behind Morrow. (00:11:50)
Visible crew/equipment: When Nasser is brought to the interrogation room he raises his handcuffed arms and Gibbs nods no to removing them. In the next closeup of Nasser's handcuffs we can see the black taped mat on the floor (also visible in a following shot) which doesn't exist in overhead shots, then as the camera tilts up the reflection of the camera operator (wearing shorts) and camera are visible in the mirror. (00:16:30)
Visible crew/equipment: While Caitlin and Jane Doe are talking about blueberries it cuts to the doctor telling Gibbs that he can't release Jane Doe, and at the start of the next shot the pink T-mark is visible on the floor in front of Gibbs. (00:13:10)
Visible crew/equipment: While Gibbs and Caitlin are alone with Lt. Roberts trying to gain access to the Armed Forces Registry, just as Roberts acknowledges the critical 48 hours, the reflection of a crew member (presumably camera operator) is visible in the mirror, on the right side of the screen. (00:22:20)
Visible crew/equipment: After Abby tells Tony that he's "like a piercing, it takes awhile for the throbbing to stop..." as Gibbs asks her about the theory, the reflection of a crew member wearing a white short-sleeve shirt is visible on the glass. (00:19:40)
Yankee White - S1-E1
Visible crew/equipment: When Gibbs is talking to Kate about the "Harrison Ford movie" noting the terrorists were reporters, just as Gibbs mentions the Secret Service turncoat, the white T-mark is visible on the floor. (00:33:25)
Continuity mistake: When Nasser is brought to the interrogation room to meet with Agent Cassidy, at first the handcuff is around Nasser's left wrist with its single metal bar facing out, but when Cassidy says, "Now please," Nasser's handcuff is on the opposite way, with its double bar facing out. (00:35:50)
Continuity mistake: During season 4 when Ziva gets worried about Tony being 'sick', she is researching y. Pestis, and telling Gibbs how worried she is about Tony having tests and the long-term effects of plague. In season 5, first episode, when Ducky comes to tell the group that the body is not Tony because "he didn't have plague", Ziva looks confused and says "before my time?"
Character mistake: When Gibbs first looks at the victim's body and sees his rank, he incorrectly refers to him as a Lieutenant when the rank is for a Captain.
Visible crew/equipment: When interviewing the DEA agent, there is a green reflection and a tripod stand reflected in her glasses. (00:11:40)
Continuity mistake: Towards the end, the news reporter's microphone is held with the WXEK facing forwards, then switches to have 19 at the front. (00:41:14)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.