The detainees were found dead on 17 September while being held by the Nigeria Security and Civil Defence Corps on suspicion of illegal mining. The inquiry found that the mining sites had been licensed.
The investigating committee discovered that 50 detainees had been held in a cell measuring about 20 sq m, with no running water or functioning toilet, and inadequate food, drinking water and airflow. Adults and minors were detained together, and some were held beyond lawful detention periods.
Officers reportedly ignored repeated calls for help, despite a medical worker raising concerns. "Detainees repeatedly banged on cell doors and walls, shouted for assistance and pleaded for water," said the head of the investigating team, Jonathan Kure. "These distress calls were heard by officers assigned to nearby duties… but were not acted upon."
Interior Minister Olubunmi Tunji-Ojo said those found responsible would face the full force of the law. He noted that the detention hall had been cleaned before investigators arrived, raising concerns about possible evidence tampering. Implicated officers will face suspension and the report will be forwarded to the attorney general for further legal action.
The investigating committee recommended compensation of 30m naira (£16,683; $22,285) for each bereaved family and 10m naira for each survivor. It also found that the raid on the miners had been conducted without an approved operational order, proper planning or consultation with the Mining Marshals Unit.