What We Do

ISB Special Agents respond across the National Park System. NPS photo by ISB.

Case Updates and News from ISB

Get the latest case updates and other news from the NPS Investigative Services Branch

Find out more about us in our recap of significant cases and operations.

Annual Reports

We are pleased to share our annual recaps of significant cases, operations, and other noteworthy events that happened throughout the year

Cold cases include missing persons and unsolved incidents. NPS image.

Cold Cases

Cold cases include missing persons and unsolved incidents - do you have information that could help investigators?

ISB: the Investigative Services Branch of the National Park Service
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Last updated: May 19, 2020