The International Criminal Court's appeals chamber has ruled that a trial of a Congolese warlord should resume after a three-month suspension.
In July, judges halted Thomas Lubanga's trial on war crimes charges and ordered his release when prosecutors refused to hand information to the defence.
Friday's ruling reversed the decision, but also rebuked Prosecutor Luis Moreno Ocampo for flouting court orders.
Mr Lubanga has denied using child soldiers in eastern DR Congo in 2002-3.
His is the first trial to start at the ICC at The Hague but the case has been plagued by legal challenges.
The 49 year old led the Union of Congolese Patriots (UPC), an ethnic Hema militia - one of six groups that fought for control of the gold-rich Ituri region.
The land struggle turned into an inter-ethnic war in which an estimated 50,000 people were killed and hundreds of thousands were left homeless.