Switzerland’s Basic Military Manual (1987) states: “The parlementaire loses his right to inviolability if it is proven in a positive and incontestable manner that he has taken advantage of his privileged position to provoke or commit an act of treason.” 

Switzerland’s Regulation on Legal Bases for Conduct during an Engagement (2005) states that, in application of the principle of distinction, a “parlementaire [who] approaches with a white flag” must not be shot at, explaining: “Protected person, until he has returned to his own troops, except if he commits a harmful act”.