Questão jurídica principal
Whether the appeal against the public summons was admissible as a complaint against an interim decision
Decisão extraída
The summons was an interim procedural order not separately challengeable; no irreparable harm was shown.
Fundamentação extraída
The cantonal decision did not end the criminal proceedings. Under Art. 93 BGG, interim decisions are appealable only under limited conditions, which were not met here.