Continuity mistake: After the drive-by shooting at the Federal Building, when Owen and Sam escort the defector and his girlfriend into the sedan, the license plate number is "5GOI417" which soon changes to "5PCI294" when Sam drives backwards. Then it changes back to "5GOI417" when Owen and Sam leave the car, and yet it's "5PCI294" again when Owen points his gun at the camera.
Fool Me Once - S2-E4
Continuity mistake: When Beckett goes to the bathroom to read Castle's book and Castle peers over the top of the cubical to tell her what page the sex scene is on, she is holding the book with her fingers between the pages dividing the book into 2 sections. These 2 sections switch to 3 and then back to 2 between shots.
Continuity mistake: 1.08 (Depraved Heart) Lightman is working late and his daughter drops by to bring him Thai food. As she's walking towards her father, her arms are crossed. Cut to the immediate shot from behind, and her arms are down at her sides.
The Debate - S6-E12
Visible crew/equipment: After Alicia and Frank have begun their mini debate in the kitchen, the hotel employee enters the kitchen; then, as Alicia says, "The system needs to be tweaked, not overhauled," the camera rounds the corner, and we can see a red T-mark and a red tape marker on the floor. (00:23:30)
Continuity mistake: After the crash, Myka helps Pete out of the wreck. There is blood on his shirt, which disappears when he sits down on the road.
Other mistake: When Neil is in prison and has time on his hands, he puts pieces together that were shredded. Neil's name in the file is CAFFERTY, not CAFFERY. Also, in the same scene, the words "e've" can be seen with the W missing. Yet, later on, when Neil shows Burke the final photocopied piece, the W that wasn't there is now visible.