JM 3-14.110
The office of the United States Attorney functions within the court basically as an independent law firm whose sole client is the United States Government. The United States Attorney represents the government in all cases, both civil and criminal, to which the government is a party or in which it has an interest.
Functional arrangement of the United States Attorney’s space requires public access to the reception area. All perimeter space beyond this point should be secured for access of United States Attorney personnel and authorized visitors.
[updated February 2018]