(in the original sense of "illegal combatant") and punished as criminals in a military jurisdiction, which may include summary execution. Soldiers who are wearing uniforms of the opposing army after the start of combat may be considered illegal combatants and subject to summary execution. Many armies have performed that kind of false flag ruse in the past, including both German and US special forces during World War II. However, if soldiers remove their disguises and put on proper insignia before the start of combat in such an operation, they are considered legal combatants and must be treated as prisoners-of-war if captured. That distinction was settled by a military tribunal in the postwar trial of Otto Skorzeny, who led Operation Greif, an infiltration mission in which German commandos wore US uniforms to infiltrate US lines during the Battle of the Bulge. Under martial law Within a state's policy, martial law may be declared in emergencies such as invasions or insurrections, and in such a case constitutionally protected rights would be suspended. Depending on a state's interpretation of martial law, this may allow police or military forces to decide and carry out punishments that include death on its own citizens, in order to restore lawful authority or for other vital reasons. That would not include killing a suspect who is directly endangering another's life, which is always legal for police, but executing a suspect under one's control as a punishment. Proving that a summary execution fell under the legal exception would be exceptionally difficult, as one would have to show why a judgment and sentence of death absolutely needed to be meted out on the spot. Hence, such extraordinary acts are almost always seen as illegal violations of human rights. See also Encounter killings by police Extrajudicial punishment Extrajudicial killing Forced disappearance License to kill (concept) Lynching Retributive justice Vigilante References War crimes Human rights abuses Capital punishment Extrajudicial killings by type Law of war Euphemisms