After the police’s preliminary investigation, it is the prosecutor’s duty to ensure e.g. that the crime leads to a punishment referred to in law. Sometimes the prosecutor may participate already in the preliminary investigation. The prosecutor shall assess whether there is enough evidence on the crime.
When the prosecutor presses charges, information on the charges and the time of the trial shall be notified to the parties by the district court.
If there is not enough evidence, the prosecutor shall make a non-prosecution decision. It does not mean that the victim of crime is not believed. It means that the evidence is not sufficient to press charges. Crimes also have expiry times. Sometimes a case is left non-prosecuted, if e.g. the prosecution right has expired.