JAKARTA - Human rights ad hoc prosecutors have returned the dossiers on three student shootings in 1998 and 1999 to investigators from the National Commission on Human Rights (Komnas HAM) because of procedural shortcomings in some of the witness testimony. Attorney General's Office spokesman Barman Zahir said on Wednesday that the dossiers were returned to the rights commission on Tuesday. "We hope the commission can complete the dossiers soon because the prosecutors cannot proceed with the cases with the invalid dossiers," he said. Barman said that his office's ad hoc prosecutors believed that the rights commission investigators should abide by the Criminal Code Procedures in their work on the shooting cases. In the dossiers submitted to the prosecutors, the testimonies of witnesses were in the form of interview transcripts typed on normal paper, with the witnesses' signatures at the end of the transcripts.