in this Volume. This Volume is a summary. It contains, in the Office’s judgment, that information necessary to account for the Special Counsel’s prosecution and declination decisions and to describe the investigation’s main factual results. 1 FBI personnel assigned to the Special Counsel’s Office were required to adhere to all applicable federal law and all Department and FBI regulations, guidelines, and policies. An FBI attorney worked on FBI-related matters for the Office, such as FBI compliance with all FBI policies and procedures, including the FBI’s Domestic Investigations and Operations Guide (DIOG). That FBI attorney worked under FBI legal supervision, not the Special Counsel’s supervision.