Homeland Security Secretary Janet Napolitano will deliver a speech Wednesday in Phoenix on information sharing among state, local and tribal officials.
Napolitano will make her remarks at a training event for fusion centers.
Fusion centers were set up across the country after 9/11 for the purpose of sharing tips, crime reports and other information among federal, state and local law enforcement agencies.
They were created to address gaps in communication about potential criminal and terrorist activity between law enforcement agencies on the local, state and national level.
Napolitano served as governor of Arizona from 2003 to January 2009 before becoming Homeland Security secretary.