When Debra was looking at Lundy's autopsy report the male diagram showed that Lundy received 2 gunshot wounds to the chest. However, in "Dirty Harry" Masuka concluded that Lundy died from gunshot wounds to the neck and chest.
After Sgt. Batista collapses the table he sits on, his right shoulder holster strap comes off in the fall and there are several views of his back. In one of these, his right back shoulder strap is twisted. In the other views, the strap was put back on straight and flat.
When Arthur is making the U-Turn to avoid the check point, the road they will turn on to seems to have no oncoming cars. A car comes up behind the van but it disappears in the next shot.
When Dexter leaves the hotel room to find Arthur it is 4:45 a.m. In minutes he finds Arthur and it's daytime.
Lundy had retired from the FBI he would have had to turn in his active FBI ID and been given a retired one. They say retired on the front.
The fish Cody caught is called a Pompano, a very popular species among fishermen in south Florida.
The fish Astor caught is a Striped Bass. Striped Bass, or "Stripers" are cold water fish. None live anywhere near Miami.
The Cuban food truck that Debra frequents does not have a water cooler. All Miami Cuban restaurants that sell Cuban coffee offer water, normally a water cooler, to counter the extreme sugar dry mouth after drinking a "cafecito."
When Arthur and Dexter turn around at the checkpoint, it's next to a wide concrete canal with a bridge over it. No such place exists in Miami.