If they couldn't hit a leg from that distance should they really have a weapon?
How many times have you fired a pistol?
How many times have I been trained and PAID to be able to handle one?
So you have no earthly idea what shooting accurately enough to bring someone down with a leg shot in a high stress situation, with or without training, is like. Pistols aren't precision weapons.
And you are currently saying that an enforcer of the law should be held to the standards of a citizen that doesn't even own a gun.
No, I'm saying your mind has been warped by Hollywood. You have unrealistic expectations for levels of skill for anyone on earth in that situation.
And yours has been warped by anime if you think him even attempting to shoot the guy in the leg would lead to the officer being sliced up before the guy gets dropped if he motions towards them instead of dropping.
*cop fires shot*