Règle correspondante
Practice Relating to Rule 6. Civilians’ Loss of Protection from Attack
Section C. Situations of doubt as to the character of a person
Sweden’s IHL Manual (1991) states: “Where there is doubt whether a person is to be considered as a combatant or as a civilian, the person shall be considered as a civilian.” 
Sweden, International Humanitarian Law in Armed Conflict, with reference to the Swedish Total Defence System, Swedish Ministry of Defence, January 1991, Section, p. 42.