Continuity mistake: At the start the girl on the webcam takes her gown off. Camera changes and now it's back on and done up. (00:00:50)
Visible crew/equipment: When Gibbs walks into the bedroom at the start the film crew are reflected in the TV. (00:04:50)
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)
Visible crew/equipment: After Ziva discovers the hair dye in the hotel room it cuts to McGee with Abby, and as they walk away from the desk, the reflections of crew members, including the dolly grip pulling the camera dolly, are visible on the glass door. (00:39:40)
Visible crew/equipment: After Abby demonstrates the magic shop knife to Gibbs, when it cuts to Tony surprising the suspect, the T-mark taped to the ground is visible behind the car in this shot and a following shot. (00:40:15)
Honor Code - S3-E7
Other mistake: At the end of the episode Gibbs has a flashback where his daughter is helping with a boat. She is in an NCIS shirt, but Gibbs had no association with NCIS while she was alive.
Under Covers - S3-E8
Continuity mistake: When Jenny joins Gibbs and Fornell in MTAC, she puts on a headset and lowers the microphone. In the next shot, she secures the headset and lowers the microphone a second time. (00:28:45)
Under Covers - S3-E8
Continuity mistake: When the assassin is getting ready to take Ziva to her room, he has a jacket covering his silenced pistol. However the jacket is constantly moving in relation to the end of the silencer. (00:35:00)
Under Covers - S3-E8
Character mistake: In one scene, Jenny refers to "the former Czech Republic." That is the state's current name; it was formerly a part of Czechoslovakia.
Under Covers - S3-E8
Continuity mistake: In S1 E15 "Enigma", about 30 minutes in, Gibbs takes out his flask and the engraving is "For Good Luck, Your Loving" with the bullet on it. At the end of this episode it's engraved with "Jethro, For Good Luck Love Shannon and Kelly".
Continuity mistake: In the scene where Chip first brings the evidence to Abby (after getting it from Mr. Palmer), in one shot, her spiderweb tattoo is on the right side of her neck, and Chip is standing to her right. In the next shot, her tattoo is on the left side of her neck, as it normally is, and Chip is standing to her left. (00:08:20)
Visible crew/equipment: When Gibbs brings the pizza to Tony at the jail, in the wide shot just as Tony walks over to Gibbs, a crew member wearing white shorts is visible behind Gibbs, on the right side of the screen (where another camera is located). (00:22:55)
Visible crew/equipment: While Gibbs flips the pages of the court records from Stewart's case, when he sees the photos he rushes off to the lab, and in the wide shot two green T-marks are visible on the floor, in front of his desk. (00:42:50)
Visible crew/equipment: After Gibbs threatens to take McGee's badge if he ever hesitates again, when it cuts to McGee at the lab with Abby, the chalk T-mark is visible on the floor at McGee's feet. (00:42:20)
Revealing mistake: The shot when Gibbs shows up to the scene, as Ducky examines the "deceased" girl, you can see a pulse in her neck. (00:07:00)
Visible crew/equipment: While Tony and Ziva are speaking with Tom Crawley about Taylor, the red and green tape marks are visible on the floor in overhead shots, such as when Crawley stands up. Also, near the end, while Gibbs, Ziva, and Tony are with Crawley and the models, more tape marks are visible again. (00:19:20)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.