Key legal question
Whether a breach of the judge’s duty to question and inform under § 58(4) ZPO constitutes violation of an essential procedural principle under § 305(1)(a) ZPO.
Extracted holding
No. The duty to question and inform is not itself a fundamental procedural principle; it allows judicial discretion and is not covered by the nullity ground of § 305(1)(a) ZPO.
Extracted reasoning
Only the breach of a fundamental legal principle qualifies, such as classic hearing rights, improper court composition, or lack of procedural prerequisites. The judge’s duty under § 58(4) ZPO is discretionary and its alleged violation does not reach that threshold.