Key legal question
Whether the federal complaint against refusal to renew the residence permit was admissible.
Extracted holding
It was inadmissible because no federal or international right to the requested permit was shown.
Extracted reasoning
Complaints are barred under Art. 83 lit. c BGG for permits without a legal entitlement; the applicant did not establish a claim, and discretionary/hardship-based residence permits confer no right.