Continuity mistake: When Ziva is on Tony's shoulders, she goes from grimacing and looking at the floor to looking above her and not grimacing as much instantly. (00:04:00)
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)
Continuity mistake: When we see Ducky arriving back at the naval yard, two men walk past his cab but when the shot changes, they walk past again. (00:24:20)
Continuity mistake: When Gibbs comes into Abbie's lab, she hands him a blue Fufu drink, it starts in her left hand, at the cut it jumps to her right hand. (00:07:50)
Continuity mistake: When Gibbs visits Abbie's lab to ask about the smoke detector and computer, he finds the CPU disassembled on her table. The "hard drive" is placed on a white tray in front of the cover, which has been removed from the CPU. Initially, the hard drive is white in color. However, in the close-up shot, it turns black and looks like a different piece altogether. Furthermore, the white tray disappears, and the hard drive sits on the CPU cover. In the wide-shot, the white tray reappears, and the hard drive is again white as it was originally. (00:24:50)
Lost at Sea - S10-E4
Continuity mistake: The way Gibbs holds the key card that Ducky gives him changes between shots. Watch the sides of the card. (00:09:30)
Lost at Sea - S10-E4
Continuity mistake: When Gibbs pulls the empty bottles out of the evidence box, he pulls three out and places them on the desk. However, when the camera changes to behind Gibbs, there are only two bottles on the desk. (00:24:10)
Lost at Sea - S10-E4
Continuity mistake: When Borin and Dinozzo are talking about why she accepted the date, Borin's hair is constantly switching/moving place. This is not because of the wind. (00:27:00)
Lost at Sea - S10-E4
Continuity mistake: When DiNozzo says about the bet being off, his facial expression changes completely in an instant cut. He goes from concentrating and serious to joking and laughing. (00:27:30)
Continuity mistake: At the start, DiNozzo is holding up his 1974 camera. When the shot changes, the way it's held changes. Take note of his finger in relation to the lens of the camera. (00:02:30)
Continuity mistake: When DiNozzo is talking about the pictures on the film, he has the film in his hand. But as McGee speaks, Tony has his hand held out and open. (00:02:50)
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: 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: 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: 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)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.