; (3) evaluate all guidance, policy memos, and related documents utilized to decide to initiate investigations with a domestic terrorism nexus; and (4) include any other subject matter the Comptroller General determines appropriate. (c) Access to relevant data The Attorney General, the Director, and the Secretary shall ensure that the Comptroller General of the United States has access to all data necessary to conduct each audit under subsection (a). II Homeland Security Efforts Against Domestic Terrorism 201. National Center for the Study of Domestic Terrorism (a) Inclusion of criteria for designation Subparagraph (B) of section 308(b)(2) of the Homeland Security Act of 2002 ( 6 U.S.C. 188(b)(2) ) is amended— (1) in the matter preceding clause (i), by striking , but are not limited to, demonstrated expertise in— and inserting demonstrated expertise in any of the following: ; and (2) by adding at the end the following new clause: (xv) Domestic terrorism. . (b) Establishment The Secretary, acting through the Under Secretary for Science and Technology of the Department of Homeland Security, shall establish in the Department a National Center for the Study of Domestic Terrorism to conduct research and education activities relating to the following: (1) Establishment of a public database of actual and attempted acts of domestic terrorism that does not include non-public personally identifiable information. (2) Advanced research regarding current and emerging trends in domestic terrorism. (c) Lead institution