Prosecutors and agents began a legal analysis to determine whether there were any charges that could be brought. Among the discussions: whether to interview Broadwell, who was the focus of the criminal probe, and Petraeus. Top officials signed off on the interviews.
During Broadwell’s first interview in September, she admitted to the affair and turned over her computer, the officials said. On her computer, investigators found classified documents, the U.S. officials said, a discovery that raised new concerns.