Key legal question
Whether the public-law appeal was admissible under Art. 83 lit. t BGG despite the exmatriculation label.
Extracted holding
The challenge was directed at a decision that depended on an assessment of the appellant's academic performance and therefore fell within the exclusion of Art. 83 lit. t BGG.
Extracted reasoning
The decisive basis of the exmatriculation was the supervisor's negative assessment of the doctoral work; the prior discussion also concerned the candidate's qualifications. Because the content of the decision depended on performance evaluation, the public-law appeal was excluded.