# Reich Security Head Office Referat IV B4

> Department of the Reich Main Security Office in Nazi Germany

**Wikidata**: [Q1302132](https://www.wikidata.org/wiki/Q1302132)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Reich_Security_Main_Office_Referat_IV_B4)  
**Source**: https://4ort.xyz/entity/reich-security-head-office-referat-iv-b4