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FBI Domestic Investigations and Operations Guide (DIOG) 2008 Version

The FBI’s DIOG was issued on December 16, 2008 to help implement the new Attorney General’s Guidelines for Domestic FBI Operations that were issued earlier that year. These guidelines reconciled a number of previously separate guidelines, the first of which had been issued in 1976. This release consists of the first version of the DIOG, issued on December 16, 2008; it was publicly released and posted to the FBI Vault in early 2011.

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