According to the research center in Switzerland, which analyzed the samples of the OPCW (Organization for the Prohibition of Chemical Weapons - ed.. ) With the incident locations in Salisbury, BZ substance was used at a poisoning Skripal that stood in the US and British arms. The poison was not produced in Russia and the USSR, Russian Foreign Minister Sergei Lavrov said.

"We learned from information from the Swiss Radiological and Chemoradiological Analysis Center in Spiez, the information was obtained on the basis of confidentiality. On March 27, experts of the center completed a study of samples sent to them from the OPCW, samples taken by the OPCW at the scene of the incident in Salisbury. And this laboratory in the city of Spiez, in which, I am convinced, professional, reputable scientists are working, came to the following results, "Lavrov said at a meeting of the Council on Foreign and Defense Policy.

"I will now quote verbatim what they sent to the OPCW as their opinion.

"Based on the results of the examination, the samples contained traces of toxic chemical BZ and its precursors relating to chemical weapons of the second category in accordance with the Convention on the Prohibition of Chemical Weapons. BZ is a nerve agent temporarily disabling a person. Psychotoxic effect is achieved in thirty to sixty minutes after application and lasts up to four days. This recipe was in the arsenal of the US Army, Great Britain and other NATO countries. In the USSR and Russia, no such chemical compounds were developed, "Lavrov said..