summary

A summary execution is an execution in which a person is accused of a crime and immediately killed without benefit of a full and fair trial. Executions as the result of summary justice (such as a drumhead court-martial) are sometimes included, but the term generally refers to capture, accusation, and execution all conducted simultaneously or within a very short period of time, and without any trial at all. Under international law, refusal to accept lawful surrender in combat and instead killing the person surrendering is also categorized as a summary execution (as well as murder).
Summary executions have been practiced by police, military, and paramilitary organizations and are frequently associated with guerrilla warfare, counter-insurgency, terrorism, and any other situation which involves a breakdown of the normal procedures for handling accused prisoners, civilian or military.

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