Owen said Wednesday that he would examine that evidence behind closed doors, but promised to give the government request the "most stringent and critical examination." He said he could make the evidence public if he was not convinced of the government's case.
"It is my duty to carry out a full, fearless and independent investigation into the circumstances of the death of Mr. Litvinenko," the judge said. "That, I intend to do."
The inquest had been due to start May 1, but Owen conceded Tuesday that it would likely be postponed.