Warriors and Guardians - S2-E4
Other mistake: You can see the driver in the blue Mustang is driving to the left of the alley, but then when Nolan and the woman detective go to chase him, they go to the right.
Training Day - S6-E4
Other mistake: When Tim and Aaron are questioning a suspect, Aaron comes out of the room to talk to Tim and shuts the door behind him. When it cuts back to Aaron, the door is open. (00:09:16)
Character mistake: When the sergeant's partner gets shot and Chen calls it in, she says he got away in a black Buick, but the car was a Honda Civic. (00:10:52)
Answer: Window tool.