The Military Court on Tuesday postponed the trial of Terrain Hotel rape and murder cases until first week of June.
The abuses took place during the incident of July last year when fighting broke out between forces of President Salva Kiir and his first Vice Riek Machar in Juba.
The SPLA Deputy Spokesman Santo Domic told journalists that twelve suspected soldiers were presented to the military court.
The trial was adjourned because some witnesses were not present in the court, he adds.
Philip Anyang Ngong Prosecutor of Private Right Defence describes the court session as a great step and that there is hope for justice.
Peter Malual Deng First Lieutenant and head of the Military Defence Lawyers says the prosecutor did not answer his question.
The court has five members headed by Brigadier General Night Bariano Almass.