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.
The Truth Is Out There - S1-E17
Character mistake: Gibbs and Ducky are in Autopsy, with Ducky describing lower-leg injuries of a deceased Petty Officer. The two bones in the lower leg are the tibia and the fibula; however, Ducky, a doctor with decades of experience, referred to the injuries as fractures of the "tibia" and "fibia." (00:13:05)
Once a Hero - S4-E8
Revealing mistake: When Ducky opens the fridge door containing the suspected killer, the dead body's eye twitches. (00:21:00)
Continuity mistake: We see a close-up of Kevin's poster that Ziva is holding. In the close-up, she is holding the poster on the right-hand side. When the shot changes to a wider shot showing Ziva and Tony, Ziva is no longer holding the poster on the right-hand side, but is now holding it on the bottom. (00:04:40)
Factual error: The "bullets" extracted from the victim are intact cartridges, not fired bullets with no cases. (00:12:36)
You Better Watch Out - S10-E10
Continuity mistake: When Jimmy is talking about the smell of dead bodies, his mask is either on or off depending on the shot. (00:02:40)
Continuity mistake: In the evidence locker, Ziva opens a folder and the white notepad is on the left-hand side. Camera changes to behind her, and now the white pad is on the right. (00:26:40)
Continuity mistake: When DiNozzo is asking, "When was the last time Ms Fenton saw Mr Kersey?" his hand is constantly changing position between instant cuts. (00:13:10)
Continuity mistake: When we first see young Abby, the way she's holding her bear changes between shots. (00:04:50)
Continuity mistake: Abby says that McGee is the most helpful person with clipboards. When she does, the position of the clipboard in her arms is constantly changing between instant cuts. (00:03:30)
Continuity mistake: When Tony wakes Ziva up, he grabs her wrist, and her fist is clenched in one shot and open in the next before returning to the closed position. (00:22:00)
Revealing mistake: When Ziva is hugging her dead father, you can see him breathing. (00:36:00)
Visible crew/equipment: When Ziva and Eli are talking, a camera crew can be seen in Eli's glasses. (00:30:10)
Visible crew/equipment: When talking to Ziva in the car, Eli's glasses reflect a light screen in his glasses. (00:29:10)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.