Major Case & Special Investigations
Your Trusted Partner in High-Risk Investigations
We handle serious and sensitive matters requiring experienced investigative oversight, including violent crime, missing persons, and high-risk situations.
These matters require discretion, experience, and the ability to navigate difficult circumstances—NSIS brings all three.
ABOUT OUR MAJOR CASE AND SPECIAL INVESTIGATIONS SERVICES
Areas Of Focus
-
![]()
01
Missing persons investigations
-
![]()
02
Violent crime case support
-
![]()
03
Criminal sexual conduct investigations
-
![]()
04
High-risk or sensitive incidents
-
![]()
05
Complex, multi-layered investigations
WHY CHOOSE US
Decades of federal, state, and local investigative experience
Real-world protection and security leadership
Discreet, professional, and evidence-based work
Trusted by attorneys, businesses, and private clients
Tailored strategies, not one-size-fits-all services
Get In Touch
Need answers, protection, or a security strategy?
Contact Northern States Investigations & Security today.