Key legal question
Whether the appellants had a protectable interest in declaratory relief under cantonal administrative procedure.
Extracted holding
They did not; the request mainly sought to reopen a matter already finally decided and to obtain either relief of a general/theoretical nature or a substitute for a time-barred or unavailable substantive claim.
Extracted reasoning
Declaratory relief is subsidiary to constitutive or performance claims and cannot be used to circumvent res judicata or to obtain abstract answers to hypothetical legal questions.