Investigation Into General Narrows Look at E-Mail

Two and a half weeks after Defense Secretary Leon E. Panetta announced an inquiry into e-mail exchanges between Gen. John R. Allen of the Marines and a socialite in Tampa, Fla., some 15 investigators working seven days a week in the Pentagon inspector general’s office have narrowed their focus to 60 to 70 e-mails that “bear a fair amount of scrutiny,” a defense official said.

The defense official, who asked not to be named because of the nature of the inquiry, said investigators were trying to determine whether the e-mails violated Defense Department policy, government regulations or military law. A law enforcement official has described some of them as sexually explicit. Pentagon officials briefed on the matter say they have been told that half a dozen are embarrassing. But General Allen’s associates say they are innocuous and contain little beyond language like “you’re a sweetheart.”