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Investigative Services for the Colorado Bureau of Investigation (CBI) serves local law enforcement, district attorneys and other state agencies through requests for service, 24 hours per day, seven days per week. Field agents are stationed at CBI headquarters in Denver as well as regional offices in Grand Junction, Durango and Pueblo. The investigative expertise of CBI’s field agents includes crimes against persons, arson investigations, polygraph examination, identity theft, public corruption, drug investigations and other complex crime investigations. CBI agents also provide training to law enforcement agencies and the community in their respective regions.