Continuity mistake: When The DA comes into NCIS after confronting Gibbs at his house, Ziva's action's in the background are constantly changing between cuts. (00:23:40)
Continuity mistake: When Ziva is photographing the bedroom she has the camera raised to her eye in one shot and lowered in the next when the DA asks about DiNozzo. (00:05:40)
Continuity mistake: Ziva is photographing the scene and takes a picture of the empty DVD player with a yellow evidence marker number 5 on top of it, Gibbs is then seen with the same marker in his hand before placing it on the DVD player. (00:04:40)
Continuity mistake: At the start, the disk falls out the paper and the case is touching the door mat. When the shot changes to a close up of the case being picked up, the case is no longer touching the mat. (00:01:05)
Visible crew/equipment: When Gibbs tells Gail Walsh that they're keeping Jerry at NCIS, Gail replies, "Only on the condition that you keep me apprised of any new information," and in the next shot from behind Gail, a crew member (presumably the boom operator) wearing a black shirt and white pants is visible at the left side of the screen. (00:25:10)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.