New rules adopted by the US Congress and Barack Obama has forbidden the use of testimony obtained through cruel treatment or torture. It comes as 9/11 suspects Khalid Sheikh Mohammed and his co-defendants appear for a hearing at Guantanamo Bay, Cuba.
General Mark Martins, the chief prosecutor, said the commission provides many of the same protections that defendants would get in civilian court. "I'm confident that this court can achieve justice and fairness," he said.
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Cloud and outbreaks of rain will ease away eastwards during the morning, clearing the east coast around midday with sunny spells developing.
Police and emergency services are attending the scene.
Rebel-held east remains at risk while the pumping station supplying the western part of the city is once again in operation.