Why would a police officer ever risk his own life by engaging in hand-to-hand combat? If a situation arises that calls for hand-to-hand combat, then the police officer should probably either use a taser or gun right?
You can see hundreds of videos out there of police shooting people without apparent just cause - just because they "felt threatened". If they had the confidence they could deal with a physical confrontation if needed, I'm certain the amount of unnecessary shootings would decrease significantly.