Visible crew/equipment: When Gibbs and Ziva are in the "safehouse" Ziva set up for Ari, a crew member and his boom microphone are seen on the left of the screen, right before Gibbs climbs the ladder to remove the hidden camera spying on them. (00:30:10)
Continuity mistake: When Tony shows Chandler's boarding pass to McGee for photo evidence, Tony's hand moves from holding the upper edge to the lower edge. (00:04:15)
The Truth Is Out There - S1-E17
Revealing mistake: Gibbs finds a bunch of cash hidden in the victim's speaker. "For Motion Picture Use Only" is printed on them.
Visible crew/equipment: In the scene where Tony approaches the Mallard residence by car for the first time, there is a stage light, complete with filter(?) on the balcony. (00:13:50)
Continuity mistake: 7.05 - Code of Conduct. Gibbs and Tony go to question a marine who is exercising. The sweat stains on his shirt get much bigger and smaller, as well as change shapes, throughout the interview. (00:20:35)
Character mistake: When Gibbs shows Major Dorden his badge, his ID card is upside down. (00:06:00)
Continuity mistake: When Tony enters the NCIS interrogation room with Fornell, he sits down and places his bag of potato chips on the table. In the next shot, the bag has disappeared, he removes it from his jacket pocket, and places it on the table again. (00:25:15)
Visible crew/equipment: At the start of the sexual harassment class, when Tracy Taylor explains, "A coworker shows you a cartoon or photo of a sexual nature," we can see three orange T-marks taped to the floor near her. (00:02:55)
Continuity mistake: When Gibbs has the Mafia boss against the car, his arm is across the Mafia guy's chest. Camera cuts and now it is right next to his neck. (00:34:50)
Continuity mistake: Just after Fornell is arrested, the agents are showing NCIS their surveillance of the mafia. When doing so, the headset on the one agent changes position instantly. (00:22:00)
Continuity mistake: When Gibbs stops Sgt. Roberts from killing his neighbor, he holds out his ID badge. His hand jumps from the top of the wallet to the bottom, then back to the top. (00:31:20)
Continuity mistake: When Aaron Wright lights his cigarette in the NCIS elevator, he takes it out of his mouth to blow out a puff of smoke. His arm remains down by his side, but in the next shot his cigarette is instantly up in his mouth. (00:29:10)
Yankee White - S1-E1
Continuity mistake: Agent Todd is standing there coat open, hands in her pockets on Air Force One watching Gibbs walk away when the bad guy who is a reporter (Leonard) comes up to her and comments "Loosening your dress code Kate". Seconds later when she turns to indicate that he should return to the press section her coat is now buttoned up. (00:33:50)
The Truth Is Out There - S1-E17
Continuity mistake: When Gibbs shows Darin Spotnitz the photo of Petty Officer Gordon and asks if he recognizes him, Gibbs' hand jumps from the top of the photograph to the side. (00:05:45)
Continuity mistake: Tony boards a helicopter to go to Puerto Rico. When he lands, it's a different one. The first has the number 406 on its side.
Continuity mistake: When McGee shows Abby the video, the first time it starts at 0:38, and when he shows it again it starts from 0:50. (00:19:00)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.