Related Rule
Practice Relating to Rule 145. Reprisals
Section D. Order at the highest authority of government
Sweden’s IHL Manual (1991) states:
Ultimately, responsibility for observance of the system of rules of international humanitarian law, among them the conventions, lies with the government. If in special circumstances the question arises of the use of prohibited means or methods as a measure of reprisal, or even the making of significant exceptions from international humanitarian law for reasons of military necessity, the responsibility for this would fall upon the government. 
Sweden, International Humanitarian Law in Armed Conflict, with reference to the Swedish Total Defence System, Swedish Ministry of Defence, January 1991, Section 4.1, p. 91.