Silver War - S3-E4
Visible crew/equipment: When in Ducky and Jimmy are in autopsy alone, there is a cameraman in the reflection of the body cooler wall. (00:18:15)
Silver War - S3-E4
Continuity mistake: When Abby realises she is like a Barbie doll, her hands are together by her chest. Camera cuts and one hand has moved away instantly. (00:24:00)
Silver War - S3-E4
Continuity mistake: When Ziva, Ducky, and Dr. Burns find the graveyard, Dr. Burns is visible between Ducky and Ziva's shoulders. She then disappears in the following wide shot, and appears again in the closeup. (00:39:40)
Silver War - S3-E4
Visible crew/equipment: At the re-enactment field, after Ziva pulls a gun on the two men in the graveyard, it then cuts to McGee and Tony with Kearns while Gibbs is on his cell. Two shots later, the camera becomes visible on the right side of the screen, just as Gibbs walks past it. (00:40:45)
Silver War - S3-E4
Continuity mistake: When inside the Smithsonian, Tony is fooling around with a bear. The baseball hats on all 3 agents have black trim on the brim, then white trim, then black trim. Zeva says her hat has a 9mm hole, and pokes a finger through a hat with a black trim. Gibbs says it is for ventilation. Then she drives home, the hats have white trim, and hers has no hole.
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.