Related Rule
Argentina
Practice Relating to Rule 69. Loss of Inviolability of Parlementaires
Argentina’s Law of War Manual (1969) provides: “The parlementaire loses his right to inviolability if there is concrete and decisive evidence that he has taken advantage of his privileged situation to commit or provoke an act of treason.” 
Argentina, Leyes de Guerra, RC-46-1, Público, II Edición 1969, Ejército Argentino, Edición original aprobado por el Comandante en Jefe del Ejército, 9 May 1967, § 6.003.