Kernrechtsfrage
Whether testimony of diplomatic mission members was inadmissible or violated fair-trial rights.
Extrahierter Entscheid
The diplomats were not compelled to testify; they testified voluntarily, and their statements were usable. The immunity argument did not bar application of the false-testimony warning.
Extrahierte Begründung
Under the Vienna Convention, diplomats need not testify, but may do so voluntarily. The sending state may waive immunity, so the risk of prosecution for false testimony is not merely theoretical.