Holt tells Santiago he doesn't want anyone to be so afraid of him that they repress basic emotions, yet he previously made a point to teach her not to express any emotion in the workplace when they were going over the mentorship binder.
S2 E18 Chasing Amy, Rosa details how she took "a bunch of pics" of Jake as he was 'die-harding' off the building and hit the bars on the window. In this episode, when Jake asks Rosa to delete every photo she has of him, she says she has none.
In the beginning of the episode, the street name is misspelled as "Mantauk" instead of "Montauk".
Captain Holt wears his Commendation breast bar above his World Trade Center Breast Bar. When the WTC bar is worn, it is worn above all other medals, but below the American Flag bar.
Several times when Jake takes a drink from the water bottle Amy made him use, he is holding it backwards and the spout is closed. He is pressing his mouth to the handle instead.
The file box that Jake and Rosa give Lt. Hawkins, containing everything they have on Ocampo, is clearly empty.
Lt. Hawkins tells Jake and Rosa that they're lucky she doesn't fire them. They are not her reports and she would have no authority to fire them. Even Holt cannot unilaterally fire them, and he is their commanding officer. Furthermore, Holt outranks Hawkins, so she couldn't even attempt to pull rank over the 9-9.