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

An ISB Special Agent stands in a desert landscape.

2018 Highlights of ISB

The 2018 annual report of the National Park Service Investigative Services Branch (ISB), with case updates and features from 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 20, 2019