The International Criminal Court ruled that the trial of an alleged Congolese warlord should resume again after a three month suspension.
The decision clears the way for the renewal of Thomas Lubanga's trial on charges of using child soldiers in a brutal conflict in eastern Congo in 2002-2003.
The ruling in The Hague overturned a judge's order to halt the tribunal's first trial and release Lubanga, after Prosecutor Luis Moreno Ocampo had refused to disclose the identity of an intermediary used by investigators to work with witnesses.
While reversing the lower court's decision to end the trial, President Sang-hyun Song also rebuked Moreno Ocampo for flouting court orders.
Song said no court can function if the prosecutor can pick and choose which court instructions he obeys.