Question juridique clé
Whether refusing to hear witness Z. violated the right to be heard or constituted excessive formalism
Solution extraite
No violation was established; the challenge to the alternative reasoning on anticipatory assessment was insufficiently reasoned and therefore inadmissible.
Motifs extraits
The appellate court had two independent grounds for refusing the witness. The appellant did not contest the evidentiary assessment ground with specific arguments showing arbitrariness or relevance of the new hearing.