Related Rule
Peru
Practice Relating to Rule 25. Medical Personnel
Section B. Equipment of medical personnel with light individual weapons
Peru’s IHL Manual (2004) states:
Medical personnel may only carry light individual weapons and are only permitted to use them to defend themselves and the wounded in their charge.
The weapons carried by medical personnel are limited to light, individual firearms, which can only be used for the purposes mentioned above. If they try to resist a military advance using weapons, they lose their “neutrality” in the conflict and, therefore, their right to protection, unless the enemy deliberately tries to kill the wounded and sick or the medical personnel themselves. 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 83.d.
The manual also states: “Regulations must be established governing the use of weapons by medical personnel, sentries guarding establishments and military medical transports to ensure that they are not confused with people taking a direct part in the hostilities.” 
Peru, Manual de Derecho Internacional Humanitario para las Fuerzas Armadas, Resolución Ministerial Nº 1394-2004-DE/CCFFAA/CDIH-FFAA, Lima, 1 December 2004, § 24.d.(2).(c).
Peru’s IHL and Human Rights Manual (2010) states:
Medical personnel may only carry light individual weapons and are only permitted to use them to defend themselves and the wounded in their charge.
The weapons carried by medical personnel are limited to light, individual firearms, which can only be used for the purposes mentioned above. If they try to resist a military advance using weapons, they lose their “neutrality” in the conflict and, therefore, their right to protection, unless the enemy deliberately tries to kill the wounded and sick or the medical personnel themselves. 
Peru, Manual de Derecho Internacional Humanitario y Derechos Humanos para las Fuerzas Armadas, Resolución Ministerial No. 049-2010/DE/VPD, Lima, 21 May 2010, § 74(d), p. 227; see also § 79(b)(1), p. 280.
The manual also states: “Regulations must be established governing the use of weapons by medical personnel, sentries guarding establishments and military medical transports to ensure that they are not confused with people taking a direct part in the 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, § 25(d)(2)(c), p. 229.