Article 22 - Conditions not depriving medical units and establishments of protection
The following conditions shall not be considered as depriving a medical unit or establishment of the protection guaranteed by Article 19 :
(1) That the personnel of the unit or establishment are armed, and that they use the arms in their own defence, or in that of the wounded and sick in their charge.
(2) That in the absence of armed orderlies, the unit or establishment is protected by a picket or by sentries or by an escort.
(3) That small arms and ammunition taken from the wounded and sick and not yet handed to the proper service, are found in the unit or establishment.
(4) That personnel and material of the veterinary service are found in the unit or establishment, without forming an integral part thereof.
(5) That the humanitarian activities of medical units and establishments or of their personnel extend to the care of civilian wounded or sick.