Annex to the Convention: Regulations respecting the laws and customs of war on land - Section II : Hostilities - Chapter III : Flags of truce - Regulations: Art. 32.
Art. 32. A person is regarded as a parlementaire who has been authorized by one of the belligerents to enter into communication with the other, and who advances bearing a white flag. He has a right to inviolability, as well as the trumpeter, bugler or drummer, the flag-bearer and interpreter who may accompany him.