Strafprozeßordnung 1975 (StPO) (Stammfassung in der derzeit geltenden Fassung; zuletzt geändert durch das BGBl. I Nr. 70/2018)

This is the main Austrian federal law governing criminal proceedings. It sets out the rules for investigations, trials, and appeals in criminal cases. It affects all individuals involved in the Austrian criminal justice system, including suspects, victims, legal professionals, and the courts.