 It later emerged that the investigation of political corruption in Alaska was being managed not by the Alaska U.S. Attorney's office, but rather by the Public Integrity Section of the U.S. Department of Justice in Washington, D.C., with FBI agents working out of the FBI building in downtown Anchorage acting as lead investigators.The FBI raids on legislative offices on August 31 and September 1 involved dozens of extra FBI agents brought up from the Lower 48, but sent home after the initial round of searches and interviews.Other agencies, including the Internal Revenue Service, were also involved.