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Peru
Practice Relating to Rule 55. Access for Humanitarian Relief to Civilians in Need
Peru’s IHL Manual (2004) states, with respect to humanitarian work conducted in non-international armed conflict:
In internal security situations, the armed forces must … facilitate the humanitarian work carried out by national institutions and components of the International Red Cross and Red Crescent Movement (National Red Cross Society or the Peruvian Red Cross, the International Federation of Red Cross and Red Crescent Societies and the International Committee of the Red Cross). 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 82.
The manual also states that “it is prohibited to deploy military personnel as part of a relief convoy”. 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 26.g.(1).
The manual also states:
Blockade.
(11) If the civilian population of the blockaded territory is inadequately provided with food and other objects essential for its survival, the blockading party must provide for free passage of such foodstuffs and other essential supplies, subject to:
(a) the right to prescribe the technical arrangements, including search, under which such passage is permitted;
(b) the condition that the distribution of such supplies shall be made under the local supervision of a Protecting Power or a humanitarian organization which offers guarantees of impartiality, such as the International Committee of the Red Cross.
(12) The blockading belligerent shall allow the passage of medical supplies for the civilian population or for the wounded and sick members of armed forces, subject to the right to prescribe technical arrangements, including search, under which such passage is permitted. 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 134.a.(11) and (12).
With regard to situations of occupation, the manual further states:
The occupying power must accept relief offered to the civilian population from abroad and facilitate its distribution (for example, food supplies, clothing, medical supplies and religious objects).
Measures must be taken to allow the free passage of all consignments of medical and hospital supplies and objects necessary for religious worship intended only for the civilian population. It must likewise permit the rapid and unimpeded passage of all consignments of foodstuffs, clothing and other supplies essential to the survival of the civilian population, particularly children under eighteen years of age and expectant and nursing mothers.
The obligation to allow the free passage of such consignments is subject to the condition that the party concerned is satisfied that there is no good reason to fear that:
a. the consignments may be diverted from their destination;
b. the control may not be effective;
c. a definite advantage may accrue to the military efforts or economy of the enemy.
Subject to temporary measures that may exceptionally be imposed for urgent reasons of security, the occupying power must give the International Committee of the Red Cross all necessary facilities to ensure protection and assistance for victims of the conflict and to carry out any other humanitarian activity with the prior consent of the parties concerned.
It must also give National Red Cross and Red Crescent Societies and any other duly recognized humanitarian organization all necessary facilities to pursue their humanitarian activities. 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 61.
Peru’s IHL and Human Rights Manual (2010) states: “Commanders must take into account the following prohibitions: (1) Refrain from deploying military personnel as part of a relief convoy”. 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 27(g)(1), p. 236.
The manual also states:
a. Blockade
(11) If the civilian population of the blockaded territory is inadequately provided with food and other objects essential for its survival, the blockading party must provide for free passage of such foodstuffs and other essential supplies, subject to:
(a) the right to prescribe the technical arrangements, including search, under which such passage is permitted;
(b) the condition that the distribution of such supplies shall be made under the local supervision of a protecting power or a humanitarian organization which offers guarantees of impartiality, such as the International Committee of the Red Cross.
(12) The blockading State party to the conflict shall allow the passage of medical supplies for the civilian population or for the wounded and sick members of the military, subject to the right to prescribe technical arrangements, including search, under which such passage is permitted. 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 125(a)11–12, p. 317–318.
The manual further states, with regard to situations of occupation:
The occupying power must accept relief offered to the civilian population from abroad and facilitate its distribution (for example, food supplies, clothing, medical supplies and religious objects).
Measures must be taken to allow the free passage of all consignments of medical and hospital supplies and objects necessary for religious worship intended only for the civilian population. It must likewise permit the rapid and unimpeded passage of all consignments of foodstuffs, clothing and other supplies essential to the survival of the civilian population, particularly children under eighteen (18) years of age and expectant or nursing mothers.
The obligation to allow the free passage of such consignments is subject to the condition that the party concerned is satisfied that there is no good reason to fear that:
a. the consignments may be diverted from their destination;
b. the control may not be effective;
c. a definite advantage may accrue to the military effort or economy of the enemy.
Subject to temporary measures that may exceptionally be imposed for urgent reasons of security, the occupying power must give the International Committee of the Red Cross all necessary facilities to ensure protection and assistance of victims of the conflict and to carry out any other humanitarian activity with the prior consent of the parties concerned.
It must also give National Red Cross and Red Crescent Societies or any other duly recognized humanitarian organization all necessary facilities to pursue their humanitarian activities. 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 62, p. 265.
The manual also states:
If the population of an occupied territory is not adequately provided with the medical supplies and medicines required and the occupying power cannot provide them, the occupying power must allow relief actions to be undertaken by other States or the ICRC. The relief provided can include items such as food, clothing, bedding and emergency shelters. 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 87(c), p. 289.
Peru’s Code of Military and Police Justice (2006) states:
A member of the military or police shall be imprisoned for a period of no less than eight and no more than 15 years if he or she in the context of an international or non-international armed conflict:
5. Causes or maintains the starvation of civilians as a method of warfare … by impeding relief supplies in violation of international humanitarian law. 
Peru, Code of Military and Police Justice, 2006, Article 95(5).
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 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 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:
5. Causes or maintains the starvation of civilians as a method of conducting hostilities … by impeding the supply of aid in violation of International Humanitarian Law. 
Peru, Military and Police Criminal Code, 2010, Article 91(5).