Visible crew/equipment: At the very start, when the NCIS agent stops at the mail box, there is a reflection of someone moving once he has stopped. There is no-one else in the area, meaning it's one of the crew. (00:00:05)
Visible crew/equipment: During the exterior scenes in Arizona, with Sheriff Boyd, Gibbs, and Tony, in some shots either a hidden lavalier microphone or transmitter is visible. One example, when Dina fires her weapon Gibbs dismounts his horse, and his hidden transmitter is briefly seen at his back. Another example, while Dina tells Gibbs and Tony that her doctor ran blood tests, Sheriff Boyd's mic is visible under his shirt by the buttons, and so on. (00:35:30)
Visible crew/equipment: When Gibbs informs Dina Risi of Patterson's death, it then cuts to Dina as she tells them she mixes her own pigments, and in the next shot facing Dina, the wheel base of filming equipment is visible on the right side of the screen (non-existent in overhead long shots). (00:36:05)
Visible crew/equipment: While Ziva and Tara are in the Conference Room, when Director Vance walks in Ziva stands up to leave, and the two yellow tape marks are visible on the floor, where Tara will soon stand. (00:20:50)
Visible crew/equipment: When Ducky tells Gibbs the deceased doesn't have enough of a liver to determine time of death, as they walk past the door we see reflections of two people other than Ducky and Gibbs. (00:19:10)
Visible crew/equipment: When Gibbs sits down to interview Noah, a red tape marker can be seen on the floor. (00:27:40)
Visible crew/equipment: After Abby tells Gibbs that she's safe and staying at the hospital to help, when it cuts to the trio reading about Afghanistan War Syndrome on the monitor, as soon as McGee starts to speak the boom mic dips into view at the top of the screen. (00:22:40)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.