It was installed by experts of the military laboratory in Potron-Down. This is stated in the statement of the official representative of the office of the Prime Minister of Great Britain. Leading scientists identified a chemical from the Rookie group, which was used on the Salisbury streets on the day of the poisoning of the former scout, recorded in document. The head of the British government, Teresa May, said that this substance had previously been produced in Russia. Britain, Germany and France called our country guilty of what happened. The heads of these countries "agreed to maintain contact in the coming days". On the eve of a meeting with German Chancellor Angela Merkel and French President Emmanuel Macron, the Prime Minister of the United Kingdom presented the first results of an investigation into the poisoning of ex-GRU officer Serghei Skripal and his daughter. They were found unconscious in the city center of Salisbury. The British authorities immediately reported that they were poisoned by a substance developed within the framework of the Soviet program "Novice". What happened sparked an international scandal. London accused Moscow. In Russia they deny involvement in the incident. Meanwhile, on March 14, Teresa May announced the expulsion of 23 Russian diplomats and the suspension of all bilateral contacts with our country.