Department of Homeland Security Directive System 252-11: Office for State and Local Law Enforcement [open pdf - 167KB]
"This Directive defines the mission and functions of the Department of Homeland Security's (DHS) Office for State and Local Law Enforcement (SLLE), within the Office of Policy. It designates the Assistant Secretary for State and Local Law Enforcement as the primary official responsible for leading the coordination of Department-wide policies related to the role of state, tribal, and local law enforcement in preventing, preparing for, protecting against, and responding to natural disasters, acts of terrorism and other man- made disasters within the United States. It also provides the state, tribal and local law enforcement community with an advocate and point of contact within the DHS Ofice of Policy, in addition to authorized liaisons within DHS Operational Components."
Department of Homeland Security DHS Directives System Directive No. 252-11
United States. Dept. of Homeland Security: http://www.dhs.gov/