Questão jurídica principal
Whether the appeal against the cantonal decision on modification of a child-return order was admissible
Decisão extraída
The appeal was admissible in principle only for issues attacking the modification judgment itself; arguments against the original return order were outside the scope.
Fundamentação extraída
The challenged decision concerned a modification request under Art. 13 LF-RMA, not the original return order. New evidence was largely inadmissible.