Washington (CNN) Bryan Pagliano, a former Hillary Clinton staffer who helped set up her private email server, has accepted an immunity offer from the FBI and the Justice Department to provide an interview to investigators, a U.S. law enforcement official told CNN Wednesday. The FBI has been asking for Pagliano's cooperation for months as dozens of investigators pored over thousands of Clinton emails in a secure room on the fourth floor of FBI headquarters. The probe shifted into a new phase recently as investigators completed the review of the emails, working with intelligence agencies and the State Department to determine whether they were classified.Bryan Pagliano, a former Hillary Clinton staffer who help set up her private email server, has accepted an immunity offer from the FBI and the Justice Department to provide an interview to investigatorsThe FBI has been asking for Pagliano's cooperation for months
With the completion of the email review, FBI investigators are expected to shift their focus on whether the highly sensitive government information, including top secret and other classified matters, found on _'s private email server constitutes a crime.