Among those locked up was Alexei "The Tractor" Petrov, a former Bulgarian commando and secret agent, who served as adviser to the former head of the State National Security Agency (DANS) until last year.
Među pritvorenima su Aleksej "Traktor" Petrov, bivši bugarski komandos i tajni agent, koji je bo savetnik bivšem šefu Državne agencije za nacionalnu bezbednost (DANS) do prošle godine.