Officer
Boris Kostov
Борис Костов
State Security (ДС)
- District directorate
- Sofia (grad)
- Persons in the archive
- 1
Known only from the records of the persons he recruited or handled.
Recruited or handled by him
| Person | Pseudonym | His part | Structure | Decisions |
|---|---|---|---|---|
| Hristo Stoilov StoynovAgent | “Yavor” („Явор“) | handled | СГУ, отдел 12 РУ-МВР, отделение ДС | 1 |