What We Do

Vandalism at Crater Lake National Park. Image seized by the Investigative Services Branch.

Use the Tip Line anytime!

See something suspicious in a National Park Service site? Stay safe and tell us about it on our Tip Line - online or by phone 888-653-0009

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

News from ISB

Get the latest news from the NPS Investigative Services Branch

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?

Last updated: July 5, 2018