Question juridique clé
Whether the parents of a legally represented minor party were admissible as witnesses under Lucerne procedural law.
Solution extraite
No. Because the minor acted through her parents as legal representatives, they had to be heard as parties and were therefore not witness-competent.
Motifs extraits
Allowing them as witnesses would empty § 157(3) ZPO/LU of content. Cantonal law governs admissible evidence, and no violation of federal law or the ECHR was shown.