Kernrechtsfrage
Whether the cantonal surveillance authority violated the appellants' right to be heard, especially the right to reply, by not communicating new submissions and evidence.
Extrahierter Entscheid
Yes. The authority had to communicate both the extract of pending enforcement proceedings and the respondent's later submission so the appellants could comment.
Extrahierte Begründung
Under Art. 29(2) Cst. and Art. 6 ECHR, every new filing or piece of evidence must be communicated to the parties, regardless of whether the court considers it decisive. The parties, not the judge, decide whether to respond.