Kernrechtsfrage
Whether the complainant could be charged investigation costs after having again filed a complaint despite a prior final assessment of the same facts.
Extrahierter Entscheid
Yes. He had caused the proceedings wilfully and at least grossly negligently, so the costs order under Art. 427(2)(a) StPO was lawful.
Extrahierte Begründung
The same conduct had already been fully assessed and led to a conviction for insult. Refiling a complaint about the same statement one month later was therefore mutwillig, especially given the complainant's legal background.