New this month Factual error: Riggs and Murtaugh are told that Cooper's self defence argument (that Woodcock's pistol fired the fatal shot as they fought) holds up because Cooper's gun is 9mm, whereas the slug pulled from the body was a .358. There is no such thing as a handgun chambered in .358. The only .358 caliber that exists is .358 Winchester, which is a rifle round.
New this month Continuity mistake: When Riggs is being questioned about his rifle, there's a shot of him from behind (after he puts his wallet away) where we see his holding his cup up with his right hand. In the next shot, his right hand is down and the cup is out of sight.