RAND just published another good product:

State and Local Intelligence in the War on Terrorism
Most discussion of information sharing in the war on terrorism has concentrated on the federal government. Yet, state and local law enforcement agencies (LEAs) may be uniquely positioned to augment federal intelligence capabilities by virtue of their presence in nearly every American community, their knowledge of local individuals and groups, and their use of intelligence to combat crime. How widespread is counterterrorism intelligence activity among state and local LEAs, and how is this activity managed? What are those state and local authorities doing differently since 9/11 in collecting and processing information? How are courts and other oversight bodies guiding that process? And what might an “ideal” division of labor among the various levels of government look like?