
Continuity mistake: When Maddie turns the photo album round, its position changes between shots. In the first shot she is holding it by the top of the album, as shown with a brown photo being away from her hands. Camera changes and now she is holding it by the bottom of the album and her hand is on the brown photo. (00:09:40)
Continuity mistake: We see Jenny talking to the former embassy worker. When doing so she has her hands out stretched in one shot and clasped in others. (00:25:30)
Continuity mistake: In one scene, Tony observes that Ziva never uses contractions when she talks, and Ziva even seems confused as to what they are. But in previous episodes, Ziva not only knows what contractions are, but uses them frequently.

Lost & Found - S5-E9
Continuity mistake: Gibbs passes a soda to Carson who holds it in one hand. When the camera changes he's not holding the can any more. (00:03:50)

Lost & Found - S5-E9
Continuity mistake: When talking to Carson's mum, the notepad Gibbs is holding has 1 page hanging loose or not at all depending on the shot. (00:09:10)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.