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| FBI Domestic Investigations and Operations Guide | |
|---|---|
| Name | FBI Domestic Investigations and Operations Guide |
| Published | 2008 (first public release) |
| Subject | United States federal law enforcement policy |
FBI Domestic Investigations and Operations Guide
The Domestic Investigations and Operations Guide (DIOG) is the Federal Bureau of Investigation's internal manual that codifies procedures for planning, conducting, and supervising domestic investigations and operations. It situates operational practice within statutory authorities, administrative directives, and interagency arrangements used by agencies such as the Department of Justice, Department of Homeland Security, Central Intelligence Agency, National Security Agency, and state-level entities including the New York Police Department and Los Angeles Police Department. The guide has informed high-profile investigations involving figures like Osama bin Laden, Edward Snowden, Julian Assange, Martha Stewart, Aaron Hernandez, and institutions such as Enron, WorldCom, Goldman Sachs, and Barclays.
The DIOG provides standardized procedures for Robert Mueller, James Comey, Christopher Wray, and other senior leaders to align investigative practice with statutes like the Fourth Amendment to the United States Constitution, the Foreign Intelligence Surveillance Act of 1978, and the Patriot Act (Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001). It guides coordination with partners including the Drug Enforcement Administration, Bureau of Alcohol, Tobacco, Firearms and Explosives, Internal Revenue Service Criminal Investigation, Federal Trade Commission, Securities and Exchange Commission, and foreign counterparts such as MI5, MI6, Deutsche Bundespolizei, and the Royal Canadian Mounted Police.
The DIOG references Supreme Court cases and statutes through the lens of directors like J. Edgar Hoover, William Webster, Louis Freeh, and court decisions such as Katz v. United States, United States v. Jones, Carpenter v. United States, and Riley v. California. It integrates policies from the Office of Legal Counsel, Office of the Director of National Intelligence, and memoranda tied to administrations of George W. Bush, Barack Obama, Donald Trump, and Joe Biden. The guide interfaces with regulations under the Privacy Act of 1974, the Federal Records Act, and directives from the National Security Council.
Case initiation, predicate establishment, and approval chains described in the DIOG influence investigations into events like the September 11 attacks, the Boston Marathon bombing, the Unabomber case, and white-collar probes such as Bernie Madoff and Lehman Brothers. The manual outlines relationships with prosecutors in the United States Attorney's Office, grand jury practice under the Fifth Amendment to the United States Constitution, coordination with the FBI Laboratory, and use of forensic partners including Federal Bureau of Investigation Laboratory, National Institute of Standards and Technology, and academic centers at Harvard University, Stanford University, and Massachusetts Institute of Technology.
The guide codifies how to employ techniques observed in investigations involving John Walker Lindh, Anwar al-Awlaki, Fugitive Tom DeLay, Colin Powell-era intelligence briefings, and transnational operations linked to Interpol notices and Europol collaborations. It describes surveillance practices, controlled operations, undercover work, use of confidential human sources seen in cases like Whitey Bulger and FBI informant roles in the ViCAP investigations, and tactical coordination with special units such as SWAT (Special Weapons and Tactics), Hostage Rescue Team, and tactical elements in the Department of Defense during joint operations.
The DIOG establishes standards for collection, classification, handling, and dissemination of intelligence consistent with directives from the Director of National Intelligence, National Counterterrorism Center, and statutory frameworks like the Intelligence Reform and Terrorism Prevention Act of 2004. It addresses liaison relationships with foreign intelligence services such as Mossad, GRU (Russian Main Intelligence Agency), Agence Nationale de la Sécurité, and multilateral efforts exemplified by Five Eyes partnerships among United States, United Kingdom, Canada, Australia, and New Zealand.
The guide incorporates privacy protections and oversight mechanisms tied to entities such as the Privacy and Civil Liberties Oversight Board, the United States Congress, Senate Judiciary Committee, House Permanent Select Committee on Intelligence, and judicial review by the Foreign Intelligence Surveillance Court. It addresses controversies and public scrutiny arising in episodes involving Chelsea Manning, Edward Snowden, Aaron Swartz, and surveillance programs exposed in reporting by organizations like The New York Times, The Washington Post, and The Guardian.
DIOG-related training and accountability link to institutions including the FBI Academy at Quantico, the Department of Justice Office of Inspector General, internal affairs functions, and inspector probes tied to figures like Loretta Lynch and Eric Holder. It informs curricula at the National Academy of Sciences workshops, interagency exercises with Federal Emergency Management Agency, and continuing education through partnerships with universities such as Georgetown University and George Washington University.