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)
Continuity mistake: When DiNozzo and Gibbs are trying to work out who the man in the hat is, Tony has the clicker up by his chest in one shot and lowered in the following shot. (00:27:30)
Continuity mistake: During the interrogation, DiNozzo holds up the petty officer's ID vertically and asks a question. When the shot changes, DiNozzo is holding it lower and now horizontally. (00:09:05)
Continuity mistake: When McGee tells Sterling, the joke is over. Sterling's hands and the items in the changes from the rear and front camera angles. (00:32:30)
Continuity mistake: When Agent Sterling shows DiNozzo her badge, the way she holds it changes between shots. (00:11:40)
Continuity mistake: When we see the pool balls on the table for the 1st time, their position changes drastically between shots. (00:03:20)
Continuity mistake: The cracks in the windshield of Fornell's car change from the overhead to the ground level camera shots. This is before Fornell returns fire. (00:01:00)
Continuity mistake: Ziva tells Tony to stop being nice to her when doing the stakeout. When she does, in one shot her arm is on the car window, in the next shot it's not, then it's back again. (00:29:20)
Continuity mistake: At the very start, the way the soldier is holding up the car changes between shots. In some shots, he is holding bottom left, in others, he is holding bottom right. (00:01:10)
Continuity mistake: Gibbs places a stack of photos down on the picture of the captain when speaking to him. When the shot changes, the stack of photos has moved off the photo of the captain. (00:07:00)
Continuity mistake: We see Fornell handing Gibbs a beer at his house and his phone is in his right hand. When the shot changes, his phone is now in his left hand. (00:10:40)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.