Visible crew/equipment: After Tony says the line "What would Steve McQueen do?" we get an extreme closeup of the front bumper of a car with Virginia plates on it. Just to the screen right of the plate, you can see the reflection of some of the filming rig used for the shot. (00:31:50)
Out of the Frying Pan - S8-E18
Continuity mistake: The way the axe faces when Leon leans it against The Wall changes between shots. Sometimes it's facing left, others it's facing right. (00:28:00)
Visible crew/equipment: When reading the background of the victim, a blue tape marker is visible under McGee's desk. (00:06:50)
Visible crew/equipment: As the team are just leaving the office for the crime scene, as Tony walks away from his desk, a yellow tape marker is visible on the floor. (00:03:40)
Visible crew/equipment: When Ziva and Gibbs are searching the changing rooms, the camera crew are reflected in The Wall mirrors. (00:12:50)
Continuity mistake: When we see young Gibbs sanding the birdhouse, the way he's holding the bird house changes between shots. It goes from being upright to on it's side. (00:35:30)
Continuity mistake: When Gibbs is looking at the photo of the Dog Tags in his basement, the way he holds the photo changes between shots. (00:19:20)
Continuity mistake: The bottle of Pepto Bismol that Fornell places on the counter at the start simply vanishes from the shot. (00:04:05)
Safe Harbor - S9-E5
Continuity mistake: The way DiNozzo holds the little black book changes between shots when he is first examining it. (00:11:20)
Safe Harbor - S9-E5
Visible crew/equipment: When Borin leaves to sign for the body, a little tape marker is visible at Gibbs' feet. (00:12:05)
Continuity mistake: When the victim falls to the ground in the pre-title sequence his eyes are closed and a pool of blood spills onto the floor from his mouth. When Tony and Ziva are examining the body and taking photo's of the victim, his eyes are now open and the pool of blood is gone from by his mouth. (00:00:50 - 00:03:10)
Visible crew/equipment: When Gibbs finds out that Otto has been found dead, he looks at Leona. In Leona's glasses you can see the reflection of the filming crew. (00:30:50)
Factual error: Special Agent Gibbs asks McGee how long Medical School takes in the UK, to which he answers 4 years. This is incorrect, because almost all aspiring doctors in the UK go through the Undergraduate Medicine route (MBBCh) which takes 5 years. When McGee performs a search on the computer, he enters "Medical Post Graduate" in the search criteria, which would be unlikely in real life. (00:24:27)
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)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.