Where such an appearance is likely to seriously endanger their life or physical integrity or that of their relatives, the trial court may, of its own motion or at the request of persons using an assumed identity pursuant to the second paragraph of Article 706-63-1, order them to be held in camera or to appear under conditions that preserve the anonymity of their physical appearance, including by benefiting from a technical device referred to in Article 706-61. The trial court shall rule on this application in camera.