A summary execution is an execution in which a person is accused of a crime and immediately killed without the 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 within a very short period of time, and without any trial. 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. Civilian jurisdiction In nearly all civilian jurisdictions, summary execution is illegal, as it violates the right of the accused to a fair trial. Almost all constitutions or legal systems based on common law have prohibited execution without the decision and sentence of a competent judge, and the UN's International Covenant on Civil and Political Rights (ICCPR) has declared the same: In practice, though, extrajudicial killings have been performed by police and domestic forces in various countries and times, sometimes under martial law. It is also performed by armed bands fighting against governments and common citizens. Military jurisdiction Under military law, summary execution is illegal in almost all circumstances, as a military tribunal would be the competent judge needed to determine guilt and declare a sentence of death. However, there are certain exceptions to this rule in emergencies and warfare where summary execution is legal. Prisoners of war Major treaties such as the Geneva Conventions and Hague Conventions, and customary international law from history, protect the rights of captured regular and irregular enemy soldiers, along with civilians of enemy states. Prisoners-of-war (POWs) must be treated in carefully defined ways which definitively ban summary execution, as the Second Additional Protocol of the Geneva Conventions (1977) states: Exceptions to prisoners of war status However, some classes of combatants may not be accorded POW status, but that definition has broadened to cover more classes of combatants over time. In the past, summary execution of pirates, spies, and francs-tireurs have been performed and considered legal under existing international law. Francs-tireurs (a term originating in the Franco-Prussian War) are enemy civilians or militia who continue