Visible crew/equipment: When Gibbs and Ziva enter Second Chances to question the owner about Curtis, in the overhead shot Gibbs stops beside the counter, and the red tape mark is visible on the floor between his feet. (00:18:20)
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)
Visible crew/equipment: When Ziva and Gibbs are searching the changing rooms, the camera crew are reflected in The Wall mirrors. (00:12:50)
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 reading the background of the victim, a blue tape marker is visible under McGee's desk. (00:06:50)
Visible crew/equipment: When Ziva and Tony arrive at the crime scene, a visible marker is on the floor exactly where McGee comes to stand. (00:03:50)
Visible crew/equipment: In the first shot of Ziva and Tony at the pizzeria, just as Fiero tells them about sales during liberty week, the green tape mark is visible on the floor between Tony's feet. (00:10:40)
Visible crew/equipment: Gibbs walks into Abby's lab while she's resting under the desk, and when Gibbs helps Abby stand up the bouncing shadow of the boom mic/pole is visible at the top, right side of the screen. (00:26:20)
Up in Smoke - S9-E23
Visible crew/equipment: When Ziva walks into the interrogation room after the sting, the camera and operator is visible in the mirror. (00:34:30)
Till Death Do Us Part - S9-E24
Visible crew/equipment: When Dr Ryan is talking to Vance, a light screen is reflected in her sunglasses. (00:04:30)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.