Règle correspondante
Sweden
Practice Relating to Rule 5. Definition of Civilians
Sweden’s IHL Manual (1991) states:
In international humanitarian law, civilians (non-combatants) are those who are not entitled to use weapons in defence or to injure an adversary. Persons who cannot be classified as combatants are thus to be considered as civilians. 
Sweden, International Humanitarian Law in Armed Conflict, with reference to the Swedish Total Defence System, Swedish Ministry of Defence, January 1991, Section 3.2.1.5, p. 42.