Investigation into Clinton Emails called "Midyear Exam"
On July 10, 2015, the FBI Counterintelligence Division opened a criminal
investigation in response to the 811 referral from the IC IG. Although only a small
percentage of 811 referrals result in criminal investigations, witnesses told the OIG
that a criminal investigation was necessary to determine the extent of classified
information on former Secretary Clinton’s private server, who was responsible for
introducing the information into an unclassified system, and why it was placed
there. The FBI gave the investigation the code name “Midyear Exam,” choosing it
from a list of randomly generated names.