Continuity mistake: When DiNozzo is talking about the pictures on the film, he has the film in his hand. But as McGee speaks, Tony has his hand held out and open. (00:02:50)
Continuity mistake: At the start, DiNozzo is holding up his 1974 camera. When the shot changes, the way it's held changes. Take note of his finger in relation to the lens of the camera. (00:02:30)
Lost at Sea - S10-E4
Continuity mistake: When Borin and Dinozzo are talking about why she accepted the date, Borin's hair is constantly switching/moving place. This is not because of the wind. (00:27:00)
Lost at Sea - S10-E4
Continuity mistake: When DiNozzo says about the bet being off, his facial expression changes completely in an instant cut. He goes from concentrating and serious to joking and laughing. (00:27:30)
Lost at Sea - S10-E4
Continuity mistake: The way Gibbs holds the key card that Ducky gives him changes between shots. Watch the sides of the card. (00:09:30)
Continuity mistake: When we see Ducky arriving back at the naval yard, two men walk past his cab but when the shot changes, they walk past again. (00:24:20)
Continuity mistake: When Ziva is on Tony's shoulders, she goes from grimacing and looking at the floor to looking above her and not grimacing as much instantly. (00:04:00)
Till Death Do Us Part - S9-E24
Continuity mistake: The way Ducky passes Jimmy the organs from the cadaver, the way he holds them changes between shots. (00:06:10)
Continuity mistake: When Gibbs is talking to the chaplain about keeping daughters safe, the way he holds his coffee changes between shots. Note his grip on the cup. (00:23:00)
Factual error: Gibbs has a conversation with the father of the victim at the Tomb of the Unknown Soldier. Something that would not be allowed by the guards of the Tomb. (00:36:50)
Out of the Frying Pan - S8-E18
Continuity mistake: Vance slams the axe on the table and through a picture of the victim. However, when Vance removes the axe a minute later, the axe is through a different part of the picture. The 1st time the axe goes through the neck/shoulders of the man in the picture but when removed it's in the forehead. (00:29:50)
Other mistake: McGee says that Jancy got into her cab at 12:37am and arrived at her destination at 12:55. That's 18 minutes for the taxi to drive "over 20 miles away" Hardly likely given traffic. (00:29:00)
Suggested correction: You missed the point of what he said. The cab ride ends at Gilroy's address, which is 20 miles from Travis Wooten's home. But the ride didn't start at Wooten's home, it started at Feeney's Billiard Club. They don't make any mention how many miles the ride was.
Factual error: Lieutenant Colonel Mann explains to the NCIS team that a "99 Toyota" is the only unaccounted for vehicle from the golf course bombing. The vehicle is a Toyota but is obviously a mid-80's Corolla, with the last production year being 1987, making it over a decade older than Mann claims. Additionally, she would not have know the year of the vehicle prior to the team running the plate, nor would she have pointlessly assumed its year. (00:32:06)
Continuity mistake: When Gibbs rejects the agent's file, Cynthia reaches for the ringing telephone with her right hand and Gibbs stops her with his left hand, but in the closeup Gibbs has his right hand on Cynthia's left hand. The closeup is a flipped shot, note their watches. (00:03:05)
Lt. Jane Doe - S2-E4
Plot hole: It really doesn't make sense that they found the real killer from Jane Doe #1 assuming he also killed Jane Doe #2. They only found him because they assumed he was in prison for the last 10 years. One could explain that he must have gone to prison shortly after the first murder because he said he'd be back but wasn't, but that he was actually recently released is just pure coincidence. And without finding him they would never have suspected Officer Cluxton.
Masquerade - S7-E14
Continuity mistake: When Gibbs has got the numbered yellow cones at the crime scene, they alternate from on his bandage to his hands between shots. (00:03:40)
Masquerade - S7-E14
Continuity mistake: When McGee is at the online wedding, a man with a green shirt and blue folder can be seen walking down the steps behind him. The same man can be seen preforming the same action a few seconds later. (00:03:00)