Part 1
General Provisions
5. Challenge of admissibility of proceedings and their deferral to the International Criminal Court
2. Admissibility shall be challenged where:
(2) criminal proceedings are underway before an Austrian public prosecutor or an Austrian court either on account of an act committed in Austria or by an Austrian national or of a request from the International Criminal Court for arrest and surrender or for the provision of judicial assistance, except where priority should be given to the pursuit of criminal proceedings by the International Criminal Court in consideration of particular circumstances, especially in order to establish the truth or the relation to other crimes giving rise to proceedings before the Court; or
Admissibility challenge - State investigation or prosecution
EDIT.