At the end of the previous episode, Mozz is shot in the chest near his heart, but in this episode as he's being wheeled into the hospital, the blood is on his lower abdomen. A doctor is also holding a towel over his lower abdomen, nowhere near his heart.
When they first arrest Larssen, you can see him being led away in the background of a shot of Neal and Peter. Though Larssen's hands are behind his back, you can clearly see that he is not handcuffed.
When Burke is chasing Larssen through Central Park, whenever the horse is moving fast the rider is clearly a stunt double and not Tim DeKay.
When the Nigerian smuggler is forced to use a payphone because his cell phone has been jammed, he gets change from Mozzie, and uses just one quarter to make a payphone call. Payphones have cost 35 cents or more in NYC for over 20 years.