Key legal question
Whether the constitutional complaint against the school authority's letters was admissible.
Extracted holding
The complaint was inadmissible because it was directed against letters rather than an appealable cantonal decision, and any claim of undue delay or refusal of justice was not substantiated.
Extracted reasoning
A constitutional complaint lies only against cantonal decrees or decisions; the applicant failed to show a denial or delay of justice and did not meet the reasoning requirements of Art. 90 para. 1 lit. b OG.