Prior to the dissolution of the Soviet Union, the laboratory manufactured and tested poisons,[1][2] and was reportedly reactivated by the Russian government in the late 1990s.
Mairanovsky and his colleagues tested a variety of lethal poisons on prisoners from the Gulags, including mustard gas, ricin, digitoxin, curare, cyanide, and many others.
[5][8][9] According to witness testimonies, the victims experienced physical changes, such as a rapid weakening and diminishment in height, followed by a calm and silent demeanor, culminating in death within 15 minutes.
Pavel Sudoplatov and Nahum Eitingon only approved specialized equipment (namely, poisons) if it had been tested on "humans", as revealed in the testimony of Mikhail Filimonov.
[5][10] The New York Times reported that Garry Kasparov, the chess champion and Putin opponent, drinks bottled water and eats prepared meals carried by his bodyguards.