Supreme Court quashes administrative court ruling for failing to hear parties on signature validity before closing proceedings.

The Supreme Court of Poland quashed the lower court's decision due to a procedural violation regarding the validity of an appeal signature. The lower court declared the appeal invalid because it was allegedly unsigned by the appellants, despite the original document being signed and the appellants personally attending the hearing. The court ruled that under the relevant procedural code, the lower court was obligated to give the parties an opportunity to clarify this specific issue before closing the proceedings.