NPS photo by the Investigative Services Branch.
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.
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 Mailstop 2555
Washington, DC 20240
Phone: 202-379-4761
Email: nps_isb@nps.gov
Learn and Explore
Submit a Tip
Aid an investigation or report something suspicious in any National Park Service Site.
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
Cold cases include missing persons and unsolved incidents - do you have information that could help investigators?
Case Updates and News from ISB
Get the latest case updates and other news from the NPS Investigative Services Branch
Annual Reports
We are pleased to share our annual recaps of significant cases, operations, and other noteworthy events that happened throughout the year
Victim and Witness Assistance
You are not alone, support is available, and you have rights - find out more here.
ISB: the Investigative Services Branch of the National Park Service
Who We Are | What We Do | News | Submit a Tip
Who We Are | What We Do | News | Submit a Tip
Last updated: March 31, 2020