The evidence by the victim who was evacuated to New Zealand in January for medical treatment for serious facial injuries suffered from a gunshot, was conducted via video link.
Local media started covering the trial on Tuesday but they are in the dark on the grounds of the closed door application.
The senior prosecutor lawyer did not provide the court with the reason.
However, Justice Tafaoimalo Tuala Warren accepted the application under the section of the Criminal Procedure Act relating to powers of the court to issue suppression orders.
The defendant Peter Tulaga, a prominent farmer, is facing four charges including attempted murder, grievous bodily harm, possession of a weapon and possession of an unlicensed firearm.
The victim and the defendant were in a defacto relationship at the time of the incident.
The verdict is expected to be delivered on Friday.