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Peru
Practice Relating to Rule 128. Release and Return of Persons Deprived of Their Liberty
Peru’s IHL Manual (2004) states: “When appropriate, special agreements should be made between the parties to the conflict or with neutral States in order to … arrange for the repatriation of prisoners of war or their transfer to neutral territory.” 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 25.b.(2).(d).
The manual also states:
a. Prisoners of war must be released and repatriated without delay after the cessation of active hostilities.
d. It is not necessary to wait until active hostilities are over to repatriate prisoners of war. Early repatriation can be very advantageous for the detaining power, enabling it to avoid a heavy administrative and logistic burden. 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 52.a and d; see also § 67.a.
The manual further states: “The internment of civilians must cease as soon as possible after the cessation of active hostilities.” 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 67.b.
The manual further specifies:
Prisoners of war charged with or convicted of an indictable offence may be detained until the end of the legal proceedings or until they have served their sentence. The parties to the conflict must notify each other of all such persons detained until the end of legal proceedings or their sentence. 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 67.d.
Peru’s IHL and Human Rights Manual (2010) states: “When appropriate, special agreements should be made between the parties to the conflict or with neutral States in order to … arrange for the repatriation of prisoners of war or their transfer to neutral territory.” 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 26(b)(2)(d), p. 233.
The manual also states:
a. Prisoners of war must be released and repatriated without delay after the cessation of active hostilities.
d. It is not necessary to wait until active hostilities are over to repatriate prisoners of war. Early repatriation can be very advantageous for the detaining power, enabling it to avoid a heavy administrative and logistic burden. 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 53(a) and (d), p. 261.
The manual further states: “The internment of civilians must cease as soon as possible after the cessation of active hostilities.” 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 68(b), p. 268.
The manual further specifies:
Persons charged with or convicted of a criminal offence may be detained until the end of the legal proceedings and, if the case may be, until they have served their sentences.
The parties to the conflict must notify each other of all such persons detained until the end of legal proceedings or their sentences. 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 68(d), p. 269.
Peru’s Code of Military and Police Justice (2006) states:
Any member of the military or police shall be imprisoned for a period of no less than five and no more than 15 years if her or she in the context of an international armed conflict:
1. … unjustifiably delays the repatriation [of a protected person]. In less serious cases, the penalty shall be of no less than two and no more than five years. 
Peru, Code of Military and Police Justice, 2006, Article 93(1).
This article is no longer in force. Along with certain other articles in this legislation, it was declared unconstitutional by the Constitutional Court (en banc decision for case file No. 0012-2006-PI-TC, 8 January 2007) because it does not stipulate a crime committed in the line of duty that would fall under the jurisdiction of a military court pursuant to Article 173 of Peru’s Constitution.
Peru’s Military and Police Criminal Code (2010), in a chapter entitled “Crimes against persons protected by international humanitarian law”, states:
A member of the military or the police shall be punished with deprivation of liberty of not less than six years and not more than twenty-five years if, in a state of emergency and when the Armed Forces assume control of the internal order, he or she:
1. … unjustifiably delays [protected persons’] repatriation. 
Peru, Military and Police Criminal Code, 2010, Article 90(1).
The Code defines persons protected by international humanitarian law as follows:
The following are persons protected by International Humanitarian Law:
1. In an international armed conflict, the persons protected by the Geneva Conventions I, II, III and IV of 12 August 1949 [and] Additional Protocol I to the Geneva Conventions of 8 June 1977.
2. In a non-international armed conflict, the persons who benefit from protection under Article 3 common to the Geneva Conventions of 1949 and, where relevant, the Additional Protocol II to the Geneva Conventions of 8 June 1977.
3. In international and non-international armed conflicts, members of the armed forces and persons who directly participate in hostilities who have laid down their arms or for any other reason find themselves defenceless. 
Peru, Military and Police Criminal Code, 2010, Article 75.
Peru’s IHL Manual (2004) states:
Some prisoners of war may decline to be repatriated because they fear the consequences they might face when they return to their own country. For example, they may be accused of treason or aiding the enemy, because they are residents in the country of the detaining power or a third State. In such circumstances, the prisoner of war should not be repatriated and an alternative solution should be found. 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 52.e.
Peru’s IHL and Human Rights Manual (2010) states:
Some prisoners of war may decline to be repatriated because they fear the consequences they might face when they return to their own country. For example, they may be accused of treason or aiding the enemy because they are residents in the country of the detaining power or a third State. In such circumstances, the prisoner of war should not be repatriated and an alternative solution should be found. 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 53(f), p. 261.