justifiable homicide

Definition from Nolo’s Plain-English Law Dictionary

A killing without evil or criminal intent, for which there is no blame. For example, an accidental shooting, a killing in the course of self-defense, or a death that results from the necessary actions of a police officer would all be justifiable homicides. Justifiable deaths are not the same as a crime of passion or a claim of diminished capacity, which refer to defenses aimed at reducing the penalty or degree of crime. (See also: crime of passion, diminished capacity)

Definition provided by Nolo’s Plain-English Law Dictionary.