Key legal question
Whether the intercommunal guardianship authority was constituted regularly and could decide after the former communal chamber was dissolved.
Extracted holding
The new intercommunal authority was lawfully constituted by convention and remained competent to decide the remanded case.
Extracted reasoning
Cantonal law allowed communes to create a single guardianship district by convention; the dissolution of the former chamber ended its members' functions, and the new authority took over pending files and later adult-protection matters.