Dykstra shoots his girlfriend, who falls into the swimming pool. A moment later we see her floating in the clear water, but there is not a single drop of blood.
Crockett's hair length changes back and forth from almost spiked at the beginning to much longer about halfway through, then back to spiked again at the end.
At the conclusion of the boat chase scene through the canal when the antagonist's boat goes airborne and lands on a nearby street, the scene is clearly spliced from two different takes right as the boat exits the left side of the frame and the car enters from the right side.
Portions of the video footage of the boat chase scene through the canal are obviously sped up.
In several instances during the boat chase scene through the canal, Tubbs' dialog does not match his lip movements or his lips aren't moving at all.
It is hard to believe anyone would try to plant bugs in a house. With several people there, there would be too much chance of getting caught. Even with a warrant that would be very a very good way to get shot.