Continuity mistake: When Tony spots Wilkerson's car in the mall's garage, in the first closeup of the Jetta the trunk has neither the Jetta badge nor the VW emblem, but in following shots both the Jetta badge and VW emblem are attached to the trunk. (00:14:55 - 00:16:55)
Continuity mistake: When Gibbs asks Abby to estimate how much time Wilkerson has in the car trunk, just as Abby says, "Depends on the age of the car," this shot is flipped, note Abby's neck tattoo switches sides. (00:10:25)
Continuity mistake: When Tony and Abby determine where the car holding Lt. Cmdr Wilkerson hit a pair of railroad tracks, Tony has a napkin tucked into his shirt like a bib. In the next shot, the napkin has disappeared from his shirt, and he is holding it in his hand instead. (00:25:10)
Chosen answer: "Policing your brass", means to pick up your expended shell casings, after firing your rifle, or pistol.
pross79