Key legal question
Whether the constitutional complaint sufficiently substantiated arbitrariness in the cantonal court's assessment of natural causation.
Extracted holding
The complaint did not meet the strict substantiation requirements for a constitutional complaint against a cassation decision.
Extracted reasoning
The appellants merely presented their own version of the facts and did not confront the cassation court's reasoning showing that the landslide was caused by exceptional rainfall, not by the pipe rupture. Arguments directed only against the appellate judgment or raised for the first time were inadmissible.