When Rosa is chasing the suspect across the road, she puts her hand out to stop a car from running over her. When the camera angle changes and she finishes crossing the road, the car is now past her, something that only could have happened if it passed through her.
When Karen is lighting the candles on Jake's birthday cake, her wine glass changes positions repeatedly between shots.
Amy discovers that Jake had a pierced nose in high school by finding an old picture of him in his bedroom. Even piercings that are allowed to close leave a visible mark in the skin. An observant detective, not to mention his girlfriend, would have spotted a closed piercing hole on his skin.
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.
Obvious stunt double when Jake crashes his hoverboard into the kitchen table.
The sound used when the Mylar helium balloon pops is of a regular latex balloon.
While watching the body cam video that shows Charles naked, Terry says that if you look between the thighs and under the testicles, you can see a bag of cocaine that the suspect tried to throw away. When the screen is shown, the bag of cocaine is off to the right-hand side of the screen, a good distance away from Charles. The area of the screen that would have shown between Charles' thighs is completely blocked from view.