When using deadly force in a fight there are alot of things you would need to be able to articulate. As an L.E.O. we have a different standard by which we can use deadly force in addition to what applies to non-sworn personal, and it is just in the verbage of the law. And yes we are trained to use less lethal methods when they apply to the situation. But the thing to remember is nothing works all time against every person. I have sprayed and tazed people that it did not effect!!!