A panel of five officers who will sit as board or jury for Danny Nightingale's court martial have been sworn in.
The Judge Advocate General advises them to ignore any media coverage they have seen to date in this case.
Some special forces members currently serving in Afghanistan are expected to give evidence via videolink during this court martial.
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People are being urged to look out for their neighbours this winter in a bid to reduce the number of deaths during the cold weather.
International Development Secretary Justine Greening is to visit an Ebola training academy and a treatment facility in Sierra Leone.