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Peru
Practice Relating to Rule 65. Perfidy
Section E. Simulation of an intention to negotiate under the white flag of truce
Peru’s IHL Manual (2004) states that “the feigning of an intent to negotiate under a flag of truce” is an example of perfidy. 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 27.e.(9).(a).
Peru’s IHL and Human Rights Manual (2010) states that “the feigning of an intent to negotiate under a flag of truce” is an example of perfidy. 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 28(e)(2)(a), p. 239.
Peru’s Military and Police Criminal Code (2010), in a chapter entitled “Crimes involving the use of prohibited methods in the conduct of hostilities, states:
A member of the military or the police shall be punished with deprivation of liberty of not less than ten and not more than twenty years if, in a state of emergency and when the Armed Forces assume control of the internal order, he or she improperly uses … the white flag … with the result set out in Article 33, paragraphs 16 and 17 [of the present code, namely causing serious injury or death]. 
Peru, Military and Police Criminal Code, 2010, Article 96.