A Freedom of Information Act (FOIA) lawsuit seeking disclosure of parts of the FBI’s domestic surveillance manual received a mixed decision from a federal judge on Nov. 10, 2011. Filed by Muslim Advocates, the lawsuit claimed that when the FBI invited them and other groups to review the FBI's Domestic Investigations and Operations Guide (DIOG) in November 2008, they had waived their right to withhold the information under FOIA rules. In his ruling, U.S. District Court Judge Emmet Sullivan rejected this argument, saying, "The court is not convinced that such a limited review is sufficient to satisfy the requirements of the public-domain doctrine.” However, he also ruled that the FBI’s “nearly wholesale redaction” of Chapter 16 of the DIOGs, a chapter about "undisclosed participation" by undercover FBI informants in community and religious groups, was enough to have the “government to submit a more specific affidavit providing additional details in support of its extensive redactions in this chapter.”