This is sometimes referred to as "no fault" homicide, and usually involves the killing of someone out of necessity or duty.

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Justifiable homicide is the term used to describe a killing that is not considered a criminal act because it was necessary to protect oneself or others, or as part of the person's duties (such as a police officer using lethal force to stop a threat). It is also sometimes referred to as "no fault" homicide.

This Is Sometimes Referred to as "No Fault" Homicide, and Usually