Judge Topolski QC has said he would not pass sentence on the two men until a Court of Appeal decision about a similar case had been heard later this summer.
However, sentencing is due to open this afternoon.
The judge earlier told the court that he was willing to offer a reduction in sentence if the defendants were to plead guilty.
He described the case as a "grave one".
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The brother of a taxi driver killed alongside the Afghan Taliban leader has asked police to investigate his sibling's death.
The girl's injuries are not thought to be life-threatening.
A dry night ahead, with any showers fading away.