Continuity mistake: When DiNozzo mimics sneezing on Nikki she reacts and freezes. Camera changes and her entire position has changed. (00:26:15)
Continuity mistake: When Jenny thanks Nikki for coming in so quickly, Nikki has her coat over her hands, camera changes and now her hands are uncovered. (00:22:00)
Continuity mistake: When the shrink asks if DiNozzo and McGee are a couple, their positions change instantly. (00:18:40)
Continuity mistake: When the CO opens the drawer of Michael's personal effects, the items change place or change entirely between shots. For example a book appears. (00:13:05)
Visible crew/equipment: Tony closes the mirror in Michael's apartment, when he does a camera is briefly in shot. (00:09:15)
Continuity mistake: When Abby tells McGee that the suspect has a gun, there is an overhead shot of the top of the building and the brown car is at least 4 spaces away from it. When Abby is watching the report on TV and says "damn you Gibbs", the car is next to the building. (00:04:00 - 00:05:00)
Revealing mistake: At the start, when the brain is being passed around you can see a fixed tube connecting to the student's arm to presumably pump the mercury into his hand. (00:01:20)
Visible crew/equipment: When Ducky comes in explaining how the victim has one more thing to say, a red tape marker is visible on the floor. (00:37:05)
Visible crew/equipment: Just as the blonde asks if she's needed to ID another photo, there is an overhead shot that includes the camera trolley wheel. (00:35:20)
Visible crew/equipment: When Tony is pacing after they find out Kamal's identity, there is a green tape marker visible on the floor. (00:32:00)
Continuity mistake: When Gibbs meets with Tom Morrow at the dinner, Tom asks Gibbs if he is going to upgrade to a smart phone. Gibbs opens his phone, the shot changes and his phone is now closed. (00:15:15)
Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.