Contact Us

Submit a tip by phone, text, email, online form, or social media message.
You don't have to tell us who you are, but please tell us what you know.

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Help protect our treasured National Park Service sites


If you see something suspicious in any NPS location, stay safe and tell us about it. Talk to any NPS employee for help in reporting suspicious activity, or give the Special Agents of the NPS Investigative Services Branch a call. We understand that it may take time to reach park personnel and/or areas with cell or internet service.

You don't have to tell us who you are, but please tell us what you know:

  • CALL or TEXT the ISB Tip Line 888-653-0009
  • ONLINE www.nps.gov/isb and click "Submit a Tip"
  • EMAIL nps_isb@nps.gov
  • MESSAGE via Facebook @InvestigativeServicesNPS or Twitter @SpecialAgentNPS

Remember - if you need to report an emergency, dial 9-1-1

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ISB: the Investigative Services Branch of the National Park Service.

Image © NPS Investigative Services Branch.

Contact us anytime


Year-round and around the clock, we stand ready to support all sites across the National Park System. ISB Special Agents also serve on multi-agency task forces and regularly collaborate with investigators of other agencies.

NPS Dispatch and Communications Center staff may access the ISB Duty Agent schedule here. Other NPS personnel may call the Emergency Incident Coordination Center (EICC) at 888-246-4335. Ask the dispatcher to connect you with the ISB Duty Agent.

For more information about ISB, or if you're interested in advancing your investigative skills or pursuing a career with ISB, call (202) 379-4761 or email us.

NPS Investigative Services Branch
1849 C St NW #2555
Washington, DC 20240
(202) 379-4761
e-mail us

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

Now Available: 2017 Highlights of ISB

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

You are not alone, and support is available - find out more here.

"Expand the Circle, Reach All Victims"

Every April, communities around the nation come together during National Crime Victims’ Rights Week (NCVRW)

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

A park biologist stands next to a massive coastal redwood tree damaged by burl poachers.

Report crimes in national parks

See something suspicious? Stay safe and tell us about it. You don't have to tell us who you are, but please tell us what you know.

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?

Learn and Explore

ISB: the Investigative Services Branch of the National Park Service

Last updated: May 19, 2018