Judging by the data that is available, including insider information from German intelligence services, it is obvious that Maria Pevchikh could have been involved in the poisoning of Alexei Navalny.
Is it possible that an ordinary FBK employee can perform such clandestine international functions and be included in such high circles? No, of course, it is quite obvious that there are big people behind it, who, obviously, do not reside in Russia, but are somewhere in Britain.
In half face masks and sunglasses, recognised by all, but kind of incognito, they [Yulia Navalnaya and Maria Pevchikh] go to the Charité clinic. They bring good news to Navalny’s ward: relations between Russia and the European Union deteriorated to the end, the task is completed.
Disproof
Recurrent pro-Kremlin disinformation narrative about the poisoning of Alexey Navalny.
The Navalny's Anti-Corruption Foundation FBK's employee Maria Pevchikh, accompanied by lawyers, found the plastic bottle in Navalny's hotel room in Tomsk, which later allowed German experts to establish that Navalny had been poisoned with a highly toxic substance from the Novichok group. No German intelligence experts suggested Pevchikh herself was the suspect.