Related Rule
Practice Relating to Rule 65. Perfidy
Section E. Simulation of an intention to negotiate under the white flag of truce
Sweden’s IHL Manual (1991) notes that “the feigning of an intent to negotiate under a flag of truce” is defined as perfidious conduct by Article 37 of the 1977 Additional Protocol I. 
Sweden, International Humanitarian Law in Armed Conflict, with reference to the Swedish Total Defence System, Swedish Ministry of Defence, January 1991, Section, p. 29.
Under Sweden’s Penal Code (1962), as amended in 1998, misuse of flags of parlementaires or “the killing or injuring of an opponent by means of some other form of treacherous behaviour” constitutes a crime against international law. 
Sweden, Penal Code, 1962, as amended in 1998, Chapter 22, § 6(2).