# Nationwide Suspicious Activity Reporting Initiative
**Aliases:** NSI; Nationwide SAR Initiative
**Entity class:** National information-sharing initiative
## Definition
The **Nationwide Suspicious Activity Reporting Initiative (NSI)** provides standards, policies, processes, and training for federal, state, local, and tribal law-enforcement entities to identify, evaluate, and share suspicious-activity reports with a potential terrorism nexus.
GAO reported that by February 2013 DOJ had trained about 290,000 of an estimated 800,000 line officers, briefed executives at 77 of 78 fusion centers, and trained about 2,000 analysts. Those are training-reach figures rather than counts of continuous intelligence participants.
## Relationships
- **report object:** [[wiki/Suspicious Activity Reporting|Suspicious Activity Reporting]].
- **institutional network:** [[wiki/National Network of Fusion Centers|National Network of Fusion Centers]].
- **public-facing campaign:** [[wiki/If You See Something, Say Something|If You See Something, Say Something]].
- **federal partners:** [[wiki/Federal Bureau of Investigation|FBI]] and [[wiki/United States Department of Homeland Security|DHS]].
## Sources / Provenance
- [GAO — Nationwide Suspicious Activity Reporting Initiative, March 13, 2013](https://www.gao.gov/products/gao-13-233)
- [GAO — Counterterrorism Information Sharing Environment, March 2023](https://www.gao.gov/assets/830/827084.pdf)