Key legal question
Whether X. had standing to appeal the cantonal decision to the Federal Tribunal.
Extracted holding
X. lacked a legally protected interest of his own and was therefore not entitled to appeal.
Extracted reasoning
He had been admitted as a party below, but he did not claim a denial of procedural rights before the cantonal instance; without a personal protected interest under Art. 76(1)(b) LTF, he could not appeal.