Part 2
Specific provisions
Section 2
16. Summonses
2. The person summoned is not obliged to acquiesce to the summons. At the request of the person summoned, of the accused or of their counsel, the Federal Ministry of Justice shall obtain from the International Criminal Court the assurance that the person shall not be subject to prosecution, arrest or detention on account of an act engaged in prior to the person’s exit from the Republic of Austria.
EDIT.