Continuity mistake: In the Season 7 Episode "Self-made," near the end, the detectives give Hawkins the murdered woman's manuscript to read and compare. The stack of papers they give him is easily 300-400 pages thick and held together with a large binder clip. Moments later, in a fit of anger, Hawkins throws the manuscript in the air and papers fly everywhere. The problem is that he throws no more than 50 pages in the air.
Revealing mistake: Season 8, "Family Values": Paul Devildis calls the bank to discuss his restructuring plan. During the shots of the two bankers, on the desk is a notebook-sized, plain brown box. It is very distinctive as it is blank except for a single square white label on the front. Later in the episode Paul delivers his restructuring plan with the bomb inside to the bank. It is in this same box.
Continuity mistake: As Goren and Eames are questioning the Botox guy, Goren takes several syringes from the kit and begins tossing them like darts into the notebook on the table. He does this with at least 5 syringes before the camera angle changes, and when it cuts back to him again there are no syringes in the notebook and he has a fresh handful of them that he begins uncapping and tossing all over again.