First episode after the Writer's strike. Tony even jokes that it feels like they've been away for months.
Ducky and Palmer are doing inventory, when Ducky expresses shock at how many latex gloves they've used. This is an inside joke, as Pauley Perrette explained on the DVD extra "A Tour of Abby's Lab" on an earlier season of NCIS (2003), that with all the re-takes, they go through several boxes of gloves in a single season.
This is the first episode where Gibbs calls Ziva "Ziver".
Kevin Rankin, who plays the low life parolee accused of killing Roe, goes on to play a Detective named Roe on Unforgettable (2011).