Questione giuridica chiave
Whether the cantonal order requiring a German translation violated language freedom under Art. 18 BV.
Decisione estratta
No; in the monolingual canton of Solothurn, the authority could require a filing in the official language and threaten non-entry if not translated.
Motivazione estratta
Language freedom protects the use of one's mother tongue, but Art. 4 BV and the territoriality principle allow cantons to preserve linguistic boundaries and require use of the official language.