Dubravica Elementary School was an important centre for the detention of over 300 Bosniaks by the HVO between 16–30 April 1993. Some were killed and others wounded, while some suffered physical mistreatment and humiliation while digging trenches. Anto Breljaš, a Croat soldier confirmed as a witness in the Kordić trial, that there were about 350 Bosniak prisoners (men, women and children) in the school. Women and children were separated from the men. The former were kept in the classrooms and the latter in the gymnasium. Military prisoners were kept in the basement and 15 of them were killed. In the gymnasium there was not enough air; there was inadequate food and no medical treatment. The detainees were mistreated and would be used as human shields and for trench-digging in the area near the school and Kula. This all led the witness to protest against the mistreatment of prisoners.