Witch Hunt - S4-E6
Visible crew/equipment: Just as Abby identifies the John Doe, from the angle behind her there is a crewman in a red shirt in shot over her right shoulder. (00:34:50)
Continuity mistake: When McGee starts filming the fight, the women are on the floor. However when he shows the video to Abby they are stood up at the start. (00:19:00)
Singled Out - S4-E3
Continuity mistake: When McGee spots the tyre marks of the unknown car, he is holding the markers in his left hand out to the side. Camera changes and now he is holding them two handed in front of his chest. (00:09:30)
Continuity mistake: When Gibbs drops the nails on the food carton, the position of the nails goes from spread out to grouped together instantly. (00:19:50)
Once a Hero - S4-E8
Continuity mistake: When talking to Luis, his ID badge keeps moving and rotating without touching it. (00:08:20)
Witch Hunt - S4-E6
Visible crew/equipment: When Gibbs gets the phone call in interrogation, a piece of filming equipment appears in shot on the left hand side of the screen. (00:34:10)
Witch Hunt - S4-E6
Visible crew/equipment: When Gibbs is searching the room he walks into the bathroom, turns the light on and leaves. Look in the mirror to see the reflection of the camera man's arm. (00:15:00)
Witch Hunt - S4-E6
Continuity mistake: McGee is taking some photos of 3 bullet casings on some wood flooring. Take note of the casing to the upper right. Its position changes with no-one touching it. (00:06:20)
Chosen answer: "Policing your brass", means to pick up your expended shell casings, after firing your rifle, or pistol.
pross79