When Castillo is talking to Marty in the vacant house, as he approaches the boy, you can clearly see a large dirt / dust stain on Castillo's pants on the right knee. This stain is there before he kneels down on his right knee onto the dirty floor. This would indicate that the scene in the final cut of the episode was derived from a subsequent take.
Around 27:40, when Castillo talks to Martie, boy's head position is inconsistent between shots.
The license plate on the front of Tubbs' car reads "Cowboy Cadillac." This would seem to be very uninformed. The term cowboy Cadillac refers to a hybrid sedan / pickup such as the Cheverolet El Camino and the Ford Ranchero. It is actually a bit of an insult, as this is not a pickup truck for a working cowboy but for someone who pretends to be a cowboy.