Visible crew/equipment: When Ziva and Eli are talking, a camera crew can be seen in Eli's glasses. (00:30:10)
Visible crew/equipment: While at Gitmo, Sergeant Spooner is attacked by a detainee, and when Tony joins in the tussle the gun is fired. It then cuts to the tented Global Courier van, and the pink tape mark is visible on the ground behind the van. (00:35:50)
Visible crew/equipment: While Gibbs is with Abby in the lab when she mentions her dissection of the laptop, in the overhead shot as Abby says, "since it came in here, Gibbs," the moving wheel of the camera dolly is visible at the bottom, right corner of the screen. (00:09:35)
Crescent City: Part 1 - S11-E18
Visible crew/equipment: When Gibbs asks about the crime scene where Doyle was killed, just as LaSalle, Brody, and Gibbs head out the door, the white T-mark taped to the rug is visible near the door. (00:36:35)
Visible crew/equipment: When Tony is with Captain O'Rourke in the parking lot, Borin approaches from behind. As O'Rourke turns to face Borin the actor's microphone has slipped out from under his shirt, between the buttons. Then when Borin says, "So will you," in the next shot facing O'Rourke and Tony, that mic is visible again. (00:38:10)
Visible crew/equipment: After Jimmy and Tony's chat, when Tony heads to the elevator Jimmy mutters that he hates being out of the loop. In the next overhead exterior shot of Tony's car, on the rear passenger window we can see the reflection of the boom operator walking and holding the boom pole/microphone. (00:21:30)
Visible crew/equipment: When Gibbs and Tony are in Vance's office, after viewing Abby's S-mine video Vance walks over to his desk, and the two green tape marks are visible on the floor where he stands. (00:26:25)
Visible crew/equipment: When "Nanook" stands beside his desk while he tells Tony and Ellie about Delilah's mother, there's a blue T-mark on the floor by McGee's feet. (00:03:05)
Visible crew/equipment: While Gibbs is in the lab reviewing the toxicology report with Abby she notes the organic red dye. When Gibbs heads to the door, just as Abby asks if he wants to know how Diego died, the pink T-mark is visible on the floor where Gibbs stands. (00:25:05)
Visible crew/equipment: While Gibbs is at the diner with Dr. Taft and his wife he gets a call from Ellie, and when it cuts to the overhead shot of Gibbs, Ellie, and Tony walking toward each other, on the ground we can see the reddish chalk mark (for Gibbs) and two white chalk T-marks (for Tony and Ellie) where the three actors meet. (00:26:10)
Visible crew/equipment: While Gibbs and Alex are in the stateroom with Kasey and Curt, when Kasey tells them about the polyps on her vocal chords, the microphone can be seen hovering in front of Kasey, at the bottom of the screen. (00:28:45)
Visible crew/equipment: When the couple walk into the convenience store the man leads the blindfolded woman, and when they stop in front of the display coolers, their two yellow and orange tape marks are visible on the floor in this shot (the tape marks are gone in the following overhead shot). (00:10:00)
Visible crew/equipment: While Gibbs is in Forensics with Abby and McGee, they inform him about the data recovery from Commander Reza's car. When Abby tells Gibbs that someone hated technology more than him, Abby says, "Mind blown," and at the start of the next shot, the boom mic dips into view above Gibbs. (00:21:00)
Visible crew/equipment: After Gibbs refuses to make a deal with Triff, just as Gibbs and McGee exit the prison's visitor cell, the shadow of the boom operator holding the boom pole/mic can be seen on the walls behind them. (00:32:30)
Visible crew/equipment: At the tuxedo shop, after Tim's phone conversation with Delilah, when Ellie says, "I guess that's that, hey decision made," in the next shot facing Tim (he's standing in front of a trifold mirror), the reflection of the boom mic is visible at the top, right corner of the screen. (00:01:55)
Visible crew/equipment: After Gibbs leaves McGee at the hospital, when it cuts to the bar with Palumbo at the pool table, there are multiple yellow and orange T-marks on the floor by the bar behind him. (00:27:15)
Rendezvous - S14-E24
Visible crew/equipment: When McGee and Torres enter Hudson's motor home, the green T-mark is visible on the floor just as McGee lifts the case lid. (00:12:35)
Visible crew/equipment: While Ellie and Nick are undercover they meet Donnie, and when Ellie walks behind the store's counter the yellow T-mark is visible on the floor. (00:16:30)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.