If the public prosecutor's office believes that the investigation provided sufficient evidence to convict the accused person in court, it will press charges.
The court then decides whether to open the so-called main proceeding ("Hauptverfahren"). A date will be set, and the defendant, victim and witnesses are summoned.
If the evidence is found to be insufficient, the public prosecutor's office will stop the proceeding against the accused person. However, the injured person can file an appeal against the decision and perhaps even initiate a so-called legal action enforcement procedure ("Klageerzwingungsverfahren") at a later date.